78276674 has 16 divisors (see below), whose sum is σ = 138518016. Its totient is φ = 32464800.

The previous prime is 78276673. The next prime is 78276763. The reversal of 78276674 is 47667287.

It is a super-2 number, since 2×78276674² = 12254475385004552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78276673) 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, 89747 + ... + 90614.

It is an arithmetic number, because the mean of its divisors is an integer number (8657376).

Almost surely, 2^78276674 is an apocalyptic number.

78276674 is a deficient number, since it is larger than the sum of its proper divisors (60241342).

78276674 is a wasteful number, since it uses less digits than its factorization.

78276674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180401.

The product of its digits is 790272, while the sum is 47.

The square root of 78276674 is about 8847.4105816335. The cubic root of 78276674 is about 427.7704573149.

The spelling of 78276674 in words is "seventy-eight million, two hundred seventy-six thousand, six hundred seventy-four".