15755397 has 16 divisors (see below), whose sum is σ = 24348672. Its totient is φ = 8875440.

The previous prime is 15755393. The next prime is 15755423. The reversal of 15755397 is 79355751.

It is not a de Polignac number, because 15755397 - 2² = 15755393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15755393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3793 + ... + 6774.

It is an arithmetic number, because the mean of its divisors is an integer number (1521792).

Almost surely, 2^15755397 is an apocalyptic number.

It is an amenable number.

15755397 is a deficient number, since it is larger than the sum of its proper divisors (8593275).

15755397 is a wasteful number, since it uses less digits than its factorization.

15755397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648.

The product of its digits is 165375, while the sum is 42.

The square root of 15755397 is about 3969.3068664441. The cubic root of 15755397 is about 250.6935249800.

The spelling of 15755397 in words is "fifteen million, seven hundred fifty-five thousand, three hundred ninety-seven".