79220787 has 8 divisors (see below), whose sum is σ = 106301136. Its totient is φ = 52477152.

The previous prime is 79220759. The next prime is 79220789. The reversal of 79220787 is 78702297.

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

It is not a de Polignac number, because 79220787 - 2¹⁴ = 79204403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79220789) 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, 83628 + ... + 84569.

It is an arithmetic number, because the mean of its divisors is an integer number (13287642).

Almost surely, 2^79220787 is an apocalyptic number.

79220787 is a deficient number, since it is larger than the sum of its proper divisors (27080349).

79220787 is a wasteful number, since it uses less digits than its factorization.

79220787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168357.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 79220787 is about 8900.6059906054. The cubic root of 79220787 is about 429.4834016054.

The spelling of 79220787 in words is "seventy-nine million, two hundred twenty thousand, seven hundred eighty-seven".