749479491 has 12 divisors (see below), whose sum is σ = 1139559720. Its totient is φ = 473355360.

The previous prime is 749479483. The next prime is 749479499. The reversal of 749479491 is 194974947.

It is an interprime number because it is at equal distance from previous prime (749479483) and next prime (749479499).

It is not a de Polignac number, because 749479491 - 2³ = 749479483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (749479499) 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 11 ways as a sum of consecutive naturals, for example, 2191290 + ... + 2191631.

It is an arithmetic number, because the mean of its divisors is an integer number (94963310).

Almost surely, 2^749479491 is an apocalyptic number.

749479491 is a deficient number, since it is larger than the sum of its proper divisors (390080229).

749479491 is a wasteful number, since it uses less digits than its factorization.

749479491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382946 (or 4382943 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 749479491 is about 27376.6230751713. The cubic root of 749479491 is about 908.3500638578.

The spelling of 749479491 in words is "seven hundred forty-nine million, four hundred seventy-nine thousand, four hundred ninety-one".