79541863 has 2 divisors, whose sum is σ = 79541864. Its totient is φ = 79541862.

The previous prime is 79541857. The next prime is 79541879. The reversal of 79541863 is 36814597.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79541863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79541563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39770931 + 39770932.

It is an arithmetic number, because the mean of its divisors is an integer number (39770932).

Almost surely, 2^79541863 is an apocalyptic number.

79541863 is a deficient number, since it is larger than the sum of its proper divisors (1).

79541863 is an equidigital number, since it uses as much as digits as its factorization.

79541863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 79541863 is about 8918.6245015697. The cubic root of 79541863 is about 430.0628410051.

The spelling of 79541863 in words is "seventy-nine million, five hundred forty-one thousand, eight hundred sixty-three".