749713491 has 12 divisors (see below), whose sum is σ = 1086948720. Its totient is φ = 497949360.

The previous prime is 749713463. The next prime is 749713493. The reversal of 749713491 is 194317947.

749713491 is a `hidden beast` number, since 74 + 97 + 1 + 3 + 491 = 666.

It is not a de Polignac number, because 749713491 - 2⁶ = 749713427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749713493) 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 11 ways as a sum of consecutive naturals, for example, 152415 + ... + 157256.

It is an arithmetic number, because the mean of its divisors is an integer number (90579060).

Almost surely, 2^749713491 is an apocalyptic number.

749713491 is a deficient number, since it is larger than the sum of its proper divisors (337235229).

749713491 is a wasteful number, since it uses less digits than its factorization.

749713491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309946 (or 309943 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 749713491 is about 27380.8964608539. The cubic root of 749713491 is about 908.4445880355. Note that the first 3 decimals are identical.

The spelling of 749713491 in words is "seven hundred forty-nine million, seven hundred thirteen thousand, four hundred ninety-one".