77477048 has 16 divisors (see below), whose sum is σ = 158475960. Its totient is φ = 35216800.

The previous prime is 77477033. The next prime is 77477053. The reversal of 77477048 is 84077477.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 440123 + ... + 440298.

Almost surely, 2^77477048 is an apocalyptic number.

It is an amenable number.

77477048 is an abundant number, since it is smaller than the sum of its proper divisors (80998912).

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

77477048 is a wasteful number, since it uses less digits than its factorization.

77477048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880438 (or 880434 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 44.

The square root of 77477048 is about 8802.1047482974. The cubic root of 77477048 is about 426.3088563763.

The spelling of 77477048 in words is "seventy-seven million, four hundred seventy-seven thousand, forty-eight".