78674894 has 16 divisors (see below), whose sum is σ = 119467440. Its totient is φ = 38855040.

The previous prime is 78674873. The next prime is 78674909. The reversal of 78674894 is 49847687.

It is a super-2 number, since 2×78674894² = 12379477891822472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110612 + ... + 111320.

It is an arithmetic number, because the mean of its divisors is an integer number (7466715).

Almost surely, 2^78674894 is an apocalyptic number.

78674894 is a deficient number, since it is larger than the sum of its proper divisors (40792546).

78674894 is a wasteful number, since it uses less digits than its factorization.

78674894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its digits is 2709504, while the sum is 53.

The square root of 78674894 is about 8869.8869214889. The cubic root of 78674894 is about 428.4946351401.

The spelling of 78674894 in words is "seventy-eight million, six hundred seventy-four thousand, eight hundred ninety-four".