79440851 has 8 divisors (see below), whose sum is σ = 91198464. Its totient is φ = 67785480.

The previous prime is 79440839. The next prime is 79440859. The reversal of 79440851 is 15804497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-79440851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79440859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23885 + ... + 27006.

It is an arithmetic number, because the mean of its divisors is an integer number (11399808).

Almost surely, 2^79440851 is an apocalyptic number.

79440851 is a deficient number, since it is larger than the sum of its proper divisors (11757613).

79440851 is a wasteful number, since it uses less digits than its factorization.

79440851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51121.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 79440851 is about 8912.9597216637. The cubic root of 79440851 is about 429.8807150648.

The spelling of 79440851 in words is "seventy-nine million, four hundred forty thousand, eight hundred fifty-one".