78955955 has 48 divisors (see below), whose sum is σ = 109571616. Its totient is φ = 54512640.

The previous prime is 78955909. The next prime is 78955957. The reversal of 78955955 is 55955987.

It is not a de Polignac number, because 78955955 - 2²⁶ = 11847091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

Its product of digits (2835000) is a multiple of the sum of its prime factors (168).

It is a junction number, because it is equal to n+sod(n) for n = 78955897 and 78955906.

It is not an unprimeable number, because it can be changed into a prime (78955957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1489709 + ... + 1489761.

It is an arithmetic number, because the mean of its divisors is an integer number (2282742).

Almost surely, 2^78955955 is an apocalyptic number.

78955955 is a deficient number, since it is larger than the sum of its proper divisors (30615661).

78955955 is a wasteful number, since it uses less digits than its factorization.

78955955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 155 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 53.

The square root of 78955955 is about 8885.7163470370. The cubic root of 78955955 is about 429.0042852342.

The spelling of 78955955 in words is "seventy-eight million, nine hundred fifty-five thousand, nine hundred fifty-five".