78957234 has 16 divisors (see below), whose sum is σ = 175460640. Its totient is φ = 26319060.

The previous prime is 78957209. The next prime is 78957239. The reversal of 78957234 is 43275987.

78957234 is a `hidden beast` number, since 78 + 9 + 572 + 3 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78957234.

It is not an unprimeable number, because it can be changed into a prime (78957239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731032 + ... + 731139.

It is an arithmetic number, because the mean of its divisors is an integer number (10966290).

Almost surely, 2^78957234 is an apocalyptic number.

78957234 is an abundant number, since it is smaller than the sum of its proper divisors (96503406).

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

78957234 is a wasteful number, since it uses less digits than its factorization.

78957234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462182 (or 1462176 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 78957234 is about 8885.7883161822. The cubic root of 78957234 is about 429.0066016882.

It can be divided in two parts, 7895 and 7234, that added together give a square (15129 = 123²).

The spelling of 78957234 in words is "seventy-eight million, nine hundred fifty-seven thousand, two hundred thirty-four".