79882447 has 2 divisors, whose sum is σ = 79882448. Its totient is φ = 79882446.

The previous prime is 79882421. The next prime is 79882463. The reversal of 79882447 is 74428897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79882447 - 2²³ = 71493839 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79882447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79882487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39941223 + 39941224.

It is an arithmetic number, because the mean of its divisors is an integer number (39941224).

Almost surely, 2^79882447 is an apocalyptic number.

79882447 is a deficient number, since it is larger than the sum of its proper divisors (1).

79882447 is an equidigital number, since it uses as much as digits as its factorization.

79882447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The square root of 79882447 is about 8937.6980817210. The cubic root of 79882447 is about 430.6757843310.

The spelling of 79882447 in words is "seventy-nine million, eight hundred eighty-two thousand, four hundred forty-seven".