78594955 has 4 divisors (see below), whose sum is σ = 94313952. Its totient is φ = 62875960.

The previous prime is 78594949. The next prime is 78594973. The reversal of 78594955 is 55949587.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 78594955 - 2²¹ = 76497803 is a prime.

It is a super-4 number, since 4×78594955⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7859491 + ... + 7859500.

It is an arithmetic number, because the mean of its divisors is an integer number (23578488).

Almost surely, 2^78594955 is an apocalyptic number.

78594955 is a deficient number, since it is larger than the sum of its proper divisors (15718997).

78594955 is a wasteful number, since it uses less digits than its factorization.

78594955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15718996.

The product of its digits is 2268000, while the sum is 52.

The square root of 78594955 is about 8865.3795745022. The cubic root of 78594955 is about 428.3494594738.

The spelling of 78594955 in words is "seventy-eight million, five hundred ninety-four thousand, nine hundred fifty-five".