79851378 has 16 divisors (see below), whose sum is σ = 159883776. Its totient is φ = 26586960.

The previous prime is 79851361. The next prime is 79851403. The reversal of 79851378 is 87315897.

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, 1426 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (9992736).

Almost surely, 2^79851378 is an apocalyptic number.

79851378 is an abundant number, since it is smaller than the sum of its proper divisors (80032398).

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

79851378 is a wasteful number, since it uses less digits than its factorization.

79851378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15089.

The product of its digits is 423360, while the sum is 48.

The square root of 79851378 is about 8935.9598253349. The cubic root of 79851378 is about 430.6199422716.

The spelling of 79851378 in words is "seventy-nine million, eight hundred fifty-one thousand, three hundred seventy-eight".