1509696 has 42 divisors (see below), whose sum is σ = 4328922. Its totient is φ = 503040.

The previous prime is 1509659. The next prime is 1509701. The reversal of 1509696 is 6969051.

It can be written as a sum of positive squares in only one way, i.e., 1440000 + 69696 = 1200^2 + 264^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1509696.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735 + ... + 1886.

2^1509696 is an apocalyptic number.

1509696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1509696 is an abundant number, since it is smaller than the sum of its proper divisors (2819226).

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

1509696 is a wasteful number, since it uses less digits than its factorization.

1509696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 1509696 is about 1228.6968706723. The cubic root of 1509696 is about 114.7175424740.

It can be divided in two parts, 150969 and 6, that added together give a triangular number (150975 = T₅₄₉).

The spelling of 1509696 in words is "one million, five hundred nine thousand, six hundred ninety-six".