749899137 has 24 divisors (see below), whose sum is σ = 1094925600. Its totient is φ = 456263808.

The previous prime is 749899133. The next prime is 749899177. The reversal of 749899137 is 731998947.

It is not a de Polignac number, because 749899137 - 2² = 749899133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749899133) 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 23 ways as a sum of consecutive naturals, for example, 36814 + ... + 53432.

It is an arithmetic number, because the mean of its divisors is an integer number (45621900).

Almost surely, 2^749899137 is an apocalyptic number.

It is an amenable number.

749899137 is a deficient number, since it is larger than the sum of its proper divisors (345026463).

749899137 is a wasteful number, since it uses less digits than its factorization.

749899137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16737 (or 16724 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The square root of 749899137 is about 27384.2863153305. The cubic root of 749899137 is about 908.5195656492.

The spelling of 749899137 in words is "seven hundred forty-nine million, eight hundred ninety-nine thousand, one hundred thirty-seven".