78925855 has 8 divisors (see below), whose sum is σ = 96913872. Its totient is φ = 61672128.

The previous prime is 78925853. The next prime is 78925877. The reversal of 78925855 is 55852987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78925855 - 2¹ = 78925853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78925799 and 78925808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78925853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183334 + ... + 183763.

It is an arithmetic number, because the mean of its divisors is an integer number (12114234).

Almost surely, 2^78925855 is an apocalyptic number.

78925855 is a deficient number, since it is larger than the sum of its proper divisors (17988017).

78925855 is a wasteful number, since it uses less digits than its factorization.

78925855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367145.

The product of its digits is 1008000, while the sum is 49.

The square root of 78925855 is about 8884.0224560725. The cubic root of 78925855 is about 428.9497625565.

The spelling of 78925855 in words is "seventy-eight million, nine hundred twenty-five thousand, eight hundred fifty-five".