15949696 has 48 divisors (see below), whose sum is σ = 36977040. Its totient is φ = 6832896.

The previous prime is 15949693. The next prime is 15949699. The reversal of 15949696 is 69694951.

It is an interprime number because it is at equal distance from previous prime (15949693) and next prime (15949699).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15949691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5001 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (770355).

Almost surely, 2^15949696 is an apocalyptic number.

15949696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15949696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18488520).

15949696 is an abundant number, since it is smaller than the sum of its proper divisors (21027344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15949696 is an equidigital number, since it uses as much as digits as its factorization.

15949696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2552 counting only the distinct ones).

The product of its digits is 524880, while the sum is 49.

The square root of 15949696 is about 3993.7070498473. The cubic root of 15949696 is about 251.7198532872.

The spelling of 15949696 in words is "fifteen million, nine hundred forty-nine thousand, six hundred ninety-six".