719542979 has 2 divisors, whose sum is σ = 719542980. Its totient is φ = 719542978.

The previous prime is 719542963. The next prime is 719542991. The reversal of 719542979 is 979245917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 719542979 - 2⁴ = 719542963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 719542979.

It is not a weakly prime, because it can be changed into another prime (719542909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359771489 + 359771490.

It is an arithmetic number, because the mean of its divisors is an integer number (359771490).

Almost surely, 2^719542979 is an apocalyptic number.

719542979 is a deficient number, since it is larger than the sum of its proper divisors (1).

719542979 is an equidigital number, since it uses as much as digits as its factorization.

719542979 is an evil number, because the sum of its binary digits is even.

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

The square root of 719542979 is about 26824.2982946432. The cubic root of 719542979 is about 896.0912706470.

The spelling of 719542979 in words is "seven hundred nineteen million, five hundred forty-two thousand, nine hundred seventy-nine".