79806976 has 80 divisors (see below), whose sum is σ = 173017944. Its totient is φ = 36634624.

The previous prime is 79806953. The next prime is 79806997. The reversal of 79806976 is 67960897.

It can be written as a sum of positive squares in 4 ways, for example, as 78854400 + 952576 = 8880^2 + 976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461226 + ... + 461398.

Almost surely, 2^79806976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79806976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86508972).

79806976 is an abundant number, since it is smaller than the sum of its proper divisors (93210968).

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

79806976 is a wasteful number, since it uses less digits than its factorization.

79806976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 79806976 is about 8933.4750237520. The cubic root of 79806976 is about 430.5401109138.

The spelling of 79806976 in words is "seventy-nine million, eight hundred six thousand, nine hundred seventy-six".