77048272 has 20 divisors (see below), whose sum is σ = 170607136. Its totient is φ = 33020640.

The previous prime is 77048269. The next prime is 77048291. The reversal of 77048272 is 27284077.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 343854 + ... + 344077.

Almost surely, 2^77048272 is an apocalyptic number.

It is an amenable number.

77048272 is an abundant number, since it is smaller than the sum of its proper divisors (93558864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77048272 is a wasteful number, since it uses less digits than its factorization.

77048272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687946 (or 687940 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 77048272 is about 8777.7145089140. The cubic root of 77048272 is about 425.5209703543.

The spelling of 77048272 in words is "seventy-seven million, forty-eight thousand, two hundred seventy-two".