416242979 has 2 divisors, whose sum is σ = 416242980. Its totient is φ = 416242978.

The previous prime is 416242969. The next prime is 416242997. The reversal of 416242979 is 979242614.

Together with next prime (416242997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 416242979 - 2²⁴ = 399465763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (416242969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208121489 + 208121490.

It is an arithmetic number, because the mean of its divisors is an integer number (208121490).

Almost surely, 2^416242979 is an apocalyptic number.

416242979 is a deficient number, since it is larger than the sum of its proper divisors (1).

416242979 is an equidigital number, since it uses as much as digits as its factorization.

416242979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 416242979 is about 20402.0336976489. The cubic root of 416242979 is about 746.6475431123.

The spelling of 416242979 in words is "four hundred sixteen million, two hundred forty-two thousand, nine hundred seventy-nine".