79770264 has 64 divisors (see below), whose sum is σ = 228633600. Its totient is φ = 22719744.

The previous prime is 79770253. The next prime is 79770269. The reversal of 79770264 is 46207797.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79770269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76257 + ... + 77295.

It is an arithmetic number, because the mean of its divisors is an integer number (3572400).

Almost surely, 2^79770264 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 79770264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114316800).

79770264 is an abundant number, since it is smaller than the sum of its proper divisors (148863336).

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

79770264 is a wasteful number, since it uses less digits than its factorization.

79770264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 79770264 is about 8931.4200438676. The cubic root of 79770264 is about 430.4740832155.

The spelling of 79770264 in words is "seventy-nine million, seven hundred seventy thousand, two hundred sixty-four".