79771223 has 16 divisors (see below), whose sum is σ = 93972480. Its totient is φ = 66285216.

The previous prime is 79771213. The next prime is 79771231. The reversal of 79771223 is 32217797.

It is a cyclic number.

It is not a de Polignac number, because 79771223 - 2⁴ = 79771207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79771213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123740 + ... + 124382.

It is an arithmetic number, because the mean of its divisors is an integer number (5873280).

Almost surely, 2^79771223 is an apocalyptic number.

79771223 is a deficient number, since it is larger than the sum of its proper divisors (14201257).

79771223 is a wasteful number, since it uses less digits than its factorization.

79771223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its digits is 37044, while the sum is 38.

The square root of 79771223 is about 8931.4737305777. The cubic root of 79771223 is about 430.4758082651.

The spelling of 79771223 in words is "seventy-nine million, seven hundred seventy-one thousand, two hundred twenty-three".