78758052 has 24 divisors (see below), whose sum is σ = 188736576. Its totient is φ = 25543008.

The previous prime is 78758033. The next prime is 78758063. The reversal of 78758052 is 25085787.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 78757995 and 78758013.

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, 88248 + ... + 89135.

It is an arithmetic number, because the mean of its divisors is an integer number (7864024).

Almost surely, 2^78758052 is an apocalyptic number.

It is an amenable number.

78758052 is an abundant number, since it is smaller than the sum of its proper divisors (109978524).

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

78758052 is a wasteful number, since it uses less digits than its factorization.

78758052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177427 (or 177425 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 78758052 is about 8874.5733418571. The cubic root of 78758052 is about 428.6455524490.

The spelling of 78758052 in words is "seventy-eight million, seven hundred fifty-eight thousand, fifty-two".