77339948 has 24 divisors (see below), whose sum is σ = 157219104. Its totient is φ = 32601600.

The previous prime is 77339939. The next prime is 77339959. The reversal of 77339948 is 84993377.

It is a junction number, because it is equal to n+sod(n) for n = 77339896 and 77339905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20933 + ... + 24348.

It is an arithmetic number, because the mean of its divisors is an integer number (6550796).

Almost surely, 2^77339948 is an apocalyptic number.

It is an amenable number.

77339948 is an abundant number, since it is smaller than the sum of its proper divisors (79879156).

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

77339948 is a wasteful number, since it uses less digits than its factorization.

77339948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45353 (or 45351 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 50.

The square root of 77339948 is about 8794.3133899128. The cubic root of 77339948 is about 426.0572487294.

It can be divided in two parts, 77339 and 948, that added together give a palindrome (78287).

The spelling of 77339948 in words is "seventy-seven million, three hundred thirty-nine thousand, nine hundred forty-eight".