79213427 has 2 divisors, whose sum is σ = 79213428. Its totient is φ = 79213426.

The previous prime is 79213397. The next prime is 79213447. The reversal of 79213427 is 72431297.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79213427 - 2⁸ = 79213171 is a prime.

It is not a weakly prime, because it can be changed into another prime (79213447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39606713 + 39606714.

It is an arithmetic number, because the mean of its divisors is an integer number (39606714).

Almost surely, 2^79213427 is an apocalyptic number.

79213427 is a deficient number, since it is larger than the sum of its proper divisors (1).

79213427 is an equidigital number, since it uses as much as digits as its factorization.

79213427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 79213427 is about 8900.1925260075. The cubic root of 79213427 is about 429.4701008214.

The spelling of 79213427 in words is "seventy-nine million, two hundred thirteen thousand, four hundred twenty-seven".