79861080 has 64 divisors (see below), whose sum is σ = 258017760. Its totient is φ = 19657728.

The previous prime is 79861079. The next prime is 79861091. The reversal of 79861080 is 8016897.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24037 + ... + 27156.

Almost surely, 2^79861080 is an apocalyptic number.

It is an amenable number.

79861080 is an abundant number, since it is smaller than the sum of its proper divisors (178156680).

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

79861080 is a wasteful number, since it uses less digits than its factorization.

79861080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51220 (or 51216 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 79861080 is about 8936.5026716272. The cubic root of 79861080 is about 430.6373817765.

The spelling of 79861080 in words is "seventy-nine million, eight hundred sixty-one thousand, eighty".