79664760 has 192 divisors, whose sum is σ = 299782080. Its totient is φ = 17971200.

The previous prime is 79664759. The next prime is 79664773. The reversal of 79664760 is 6746697.

79664760 = T₄₅₁ + T₄₅₂ + ... + T₈₂₈.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254364 + ... + 254676.

It is an arithmetic number, because the mean of its divisors is an integer number (1561365).

Almost surely, 2^79664760 is an apocalyptic number.

79664760 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79664760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149891040).

79664760 is an abundant number, since it is smaller than the sum of its proper divisors (220117320).

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

79664760 is a wasteful number, since it uses less digits than its factorization.

79664760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 79664760 is about 8925.5117500343. The cubic root of 79664760 is about 430.2842180836.

It can be divided in two parts, 796 and 64760, that added together give a palindrome (65556).

The spelling of 79664760 in words is "seventy-nine million, six hundred sixty-four thousand, seven hundred sixty".