247096979 has 2 divisors, whose sum is σ = 247096980. Its totient is φ = 247096978.

The previous prime is 247096973. The next prime is 247097017. The reversal of 247096979 is 979690742.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247096979 is a prime.

It is a super-2 number, since 2×247096979² = 122113834061852882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247096979.

It is not a weakly prime, because it can be changed into another prime (247096973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123548489 + 123548490.

It is an arithmetic number, because the mean of its divisors is an integer number (123548490).

Almost surely, 2^247096979 is an apocalyptic number.

247096979 is a deficient number, since it is larger than the sum of its proper divisors (1).

247096979 is an equidigital number, since it uses as much as digits as its factorization.

247096979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 247096979 is about 15719.3186557179. The cubic root of 247096979 is about 627.5126404971.

The spelling of 247096979 in words is "two hundred forty-seven million, ninety-six thousand, nine hundred seventy-nine".