749291836 has 6 divisors (see below), whose sum is σ = 1311260720. Its totient is φ = 374645916.

The previous prime is 749291827. The next prime is 749291903. The reversal of 749291836 is 638192947.

It is a super-2 number, since 2×749291836² = 1122876510992501792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749291836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93661476 + ... + 93661483.

Almost surely, 2^749291836 is an apocalyptic number.

It is an amenable number.

749291836 is a deficient number, since it is larger than the sum of its proper divisors (561968884).

749291836 is a wasteful number, since it uses less digits than its factorization.

749291836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187322963 (or 187322961 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 749291836 is about 27373.1955752338. The cubic root of 749291836 is about 908.2742465021.

The spelling of 749291836 in words is "seven hundred forty-nine million, two hundred ninety-one thousand, eight hundred thirty-six".