79220785 has 16 divisors (see below), whose sum is σ = 114364800. Its totient is φ = 51463296.

The previous prime is 79220759. The next prime is 79220789. The reversal of 79220785 is 58702297.

It is a cyclic number.

It is not a de Polignac number, because 79220785 - 2¹³ = 79212593 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 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, 58900 + ... + 60229.

It is an arithmetic number, because the mean of its divisors is an integer number (7147800).

Almost surely, 2^79220785 is an apocalyptic number.

It is an amenable number.

79220785 is a deficient number, since it is larger than the sum of its proper divisors (35144015).

79220785 is a wasteful number, since it uses less digits than its factorization.

79220785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119160.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 79220785 is about 8900.6058782535. The cubic root of 79220785 is about 429.4833979912.

The spelling of 79220785 in words is "seventy-nine million, two hundred twenty thousand, seven hundred eighty-five".