15949047 has 4 divisors (see below), whose sum is σ = 21265400. Its totient is φ = 10632696.

The previous prime is 15949039. The next prime is 15949049. The reversal of 15949047 is 74094951.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15949047 - 2³ = 15949039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15948996 and 15949014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15949049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2658172 + ... + 2658177.

It is an arithmetic number, because the mean of its divisors is an integer number (5316350).

Almost surely, 2^15949047 is an apocalyptic number.

15949047 is a deficient number, since it is larger than the sum of its proper divisors (5316353).

15949047 is an equidigital number, since it uses as much as digits as its factorization.

15949047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316352.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 15949047 is about 3993.6257961907. The cubic root of 15949047 is about 251.7164390445.

The spelling of 15949047 in words is "fifteen million, nine hundred forty-nine thousand, forty-seven".