247996933 has 2 divisors, whose sum is σ = 247996934. Its totient is φ = 247996932.

The previous prime is 247996927. The next prime is 247996937. The reversal of 247996933 is 339699742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174689089 + 73307844 = 13217^2 + 8562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247996933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247996937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123998466 + 123998467.

It is an arithmetic number, because the mean of its divisors is an integer number (123998467).

Almost surely, 2^247996933 is an apocalyptic number.

It is an amenable number.

247996933 is a deficient number, since it is larger than the sum of its proper divisors (1).

247996933 is an equidigital number, since it uses as much as digits as its factorization.

247996933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 52.

The square root of 247996933 is about 15747.9183703752. The cubic root of 247996933 is about 628.2735405175.

The spelling of 247996933 in words is "two hundred forty-seven million, nine hundred ninety-six thousand, nine hundred thirty-three".