77988348 has 36 divisors (see below), whose sum is σ = 197405208. Its totient is φ = 25960800.

The previous prime is 77988319. The next prime is 77988349. The reversal of 77988348 is 84388977.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 77988294 and 77988303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77988349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51490 + ... + 52982.

It is an arithmetic number, because the mean of its divisors is an integer number (5483478).

Almost surely, 2^77988348 is an apocalyptic number.

It is an amenable number.

77988348 is an abundant number, since it is smaller than the sum of its proper divisors (119416860).

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

77988348 is a wasteful number, since it uses less digits than its factorization.

77988348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954 (or 2949 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 77988348 is about 8831.1011770900. The cubic root of 77988348 is about 427.2445914612.

The spelling of 77988348 in words is "seventy-seven million, nine hundred eighty-eight thousand, three hundred forty-eight".