78674562 has 12 divisors (see below), whose sum is σ = 170461590. Its totient is φ = 26224848.

The previous prime is 78674551. The next prime is 78674581. The reversal of 78674562 is 26547687.

78674562 is a `hidden beast` number, since 7 + 86 + 7 + 4 + 562 = 666.

It can be written as a sum of positive squares in only one way, i.e., 77422401 + 1252161 = 8799^2 + 1119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2185387 + ... + 2185422.

Almost surely, 2^78674562 is an apocalyptic number.

78674562 is an abundant number, since it is smaller than the sum of its proper divisors (91787028).

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

78674562 is a wasteful number, since it uses less digits than its factorization.

78674562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370817 (or 4370814 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 78674562 is about 8869.8682064617. The cubic root of 78674562 is about 428.4940324047.

The spelling of 78674562 in words is "seventy-eight million, six hundred seventy-four thousand, five hundred sixty-two".