247799023 has 2 divisors, whose sum is σ = 247799024. Its totient is φ = 247799022.

The previous prime is 247798973. The next prime is 247799029. The reversal of 247799023 is 320997742.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247799023 - 2¹³ = 247790831 is a prime.

It is a super-2 number, since 2×247799023² = 122808711599509058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247799029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123899511 + 123899512.

It is an arithmetic number, because the mean of its divisors is an integer number (123899512).

Almost surely, 2^247799023 is an apocalyptic number.

247799023 is a deficient number, since it is larger than the sum of its proper divisors (1).

247799023 is an equidigital number, since it uses as much as digits as its factorization.

247799023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 247799023 is about 15741.6334285868. The cubic root of 247799023 is about 628.1063681445.

The spelling of 247799023 in words is "two hundred forty-seven million, seven hundred ninety-nine thousand, twenty-three".