79945933 has 2 divisors, whose sum is σ = 79945934. Its totient is φ = 79945932.

The previous prime is 79945927. The next prime is 79945963. The reversal of 79945933 is 33954997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60559524 + 19386409 = 7782^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 79945933 - 2⁹ = 79945421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79945903) 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 as a sum of consecutive naturals, namely, 39972966 + 39972967.

It is an arithmetic number, because the mean of its divisors is an integer number (39972967).

Almost surely, 2^79945933 is an apocalyptic number.

It is an amenable number.

79945933 is a deficient number, since it is larger than the sum of its proper divisors (1).

79945933 is an equidigital number, since it uses as much as digits as its factorization.

79945933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 49.

The square root of 79945933 is about 8941.2489619739. The cubic root of 79945933 is about 430.7898462800.

The spelling of 79945933 in words is "seventy-nine million, nine hundred forty-five thousand, nine hundred thirty-three".