247068923 has 2 divisors, whose sum is σ = 247068924. Its totient is φ = 247068922.

The previous prime is 247068919. The next prime is 247068937. The reversal of 247068923 is 329860742.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247068923 - 2² = 247068919 is a prime.

It is a super-2 number, since 2×247068923² = 122086105424759858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247068953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123534461 + 123534462.

It is an arithmetic number, because the mean of its divisors is an integer number (123534462).

Almost surely, 2^247068923 is an apocalyptic number.

247068923 is a deficient number, since it is larger than the sum of its proper divisors (1).

247068923 is an equidigital number, since it uses as much as digits as its factorization.

247068923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 247068923 is about 15718.4262252937. The cubic root of 247068923 is about 627.4888898209.

The spelling of 247068923 in words is "two hundred forty-seven million, sixty-eight thousand, nine hundred twenty-three".