745291979 has 2 divisors, whose sum is σ = 745291980. Its totient is φ = 745291978.

The previous prime is 745291913. The next prime is 745291991. The reversal of 745291979 is 979192547.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 745291979 - 2²⁰ = 744243403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 745291979.

It is not a weakly prime, because it can be changed into another prime (745297979) 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, 372645989 + 372645990.

It is an arithmetic number, because the mean of its divisors is an integer number (372645990).

Almost surely, 2^745291979 is an apocalyptic number.

745291979 is a deficient number, since it is larger than the sum of its proper divisors (1).

745291979 is an equidigital number, since it uses as much as digits as its factorization.

745291979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 53.

The square root of 745291979 is about 27300.0362453972. The cubic root of 745291979 is about 906.6551840536.

The spelling of 745291979 in words is "seven hundred forty-five million, two hundred ninety-one thousand, nine hundred seventy-nine".