79487316 has 18 divisors (see below), whose sum is σ = 200926362. Its totient is φ = 26495760.

The previous prime is 79487311. The next prime is 79487323. The reversal of 79487316 is 61378497.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 31877316 = 6900^2 + 5646^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79487311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1103955 + ... + 1104026.

Almost surely, 2^79487316 is an apocalyptic number.

It is an amenable number.

79487316 is an abundant number, since it is smaller than the sum of its proper divisors (121439046).

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

79487316 is a wasteful number, since it uses less digits than its factorization.

79487316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207991 (or 2207986 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 79487316 is about 8915.5659382902. The cubic root of 79487316 is about 429.9645112229.

The spelling of 79487316 in words is "seventy-nine million, four hundred eighty-seven thousand, three hundred sixteen".