749015397 has 64 divisors (see below), whose sum is σ = 1298841600. Its totient is φ = 422470080.

The previous prime is 749015389. The next prime is 749015413. The reversal of 749015397 is 793510947.

749015397 is a `hidden beast` number, since 7 + 490 + 153 + 9 + 7 = 666.

It is not a de Polignac number, because 749015397 - 2³ = 749015389 is a prime.

It is a super-2 number, since 2×749015397² = 1122048129886135218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749010397) 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 63 ways as a sum of consecutive naturals, for example, 204928 + ... + 208550.

It is an arithmetic number, because the mean of its divisors is an integer number (20294400).

Almost surely, 2^749015397 is an apocalyptic number.

It is an amenable number.

749015397 is a deficient number, since it is larger than the sum of its proper divisors (549826203).

749015397 is a wasteful number, since it uses less digits than its factorization.

749015397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695 (or 3689 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 749015397 is about 27368.1456624303. The cubic root of 749015397 is about 908.1625351073.

The spelling of 749015397 in words is "seven hundred forty-nine million, fifteen thousand, three hundred ninety-seven".