247233797 has 2 divisors, whose sum is σ = 247233798. Its totient is φ = 247233796.

The previous prime is 247233769. The next prime is 247233799. The reversal of 247233797 is 797332742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155725441 + 91508356 = 12479^2 + 9566^2 .

It is a cyclic number.

It is not a de Polignac number, because 247233797 - 2⁶ = 247233733 is a prime.

It is a super-2 number, since 2×247233797² = 122249100758074418, which contains 22 as substring.

Together with 247233799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247233799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123616898 + 123616899.

It is an arithmetic number, because the mean of its divisors is an integer number (123616899).

Almost surely, 2^247233797 is an apocalyptic number.

It is an amenable number.

247233797 is a deficient number, since it is larger than the sum of its proper divisors (1).

247233797 is an equidigital number, since it uses as much as digits as its factorization.

247233797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 44.

The square root of 247233797 is about 15723.6699596500. The cubic root of 247233797 is about 627.6284373847.

The spelling of 247233797 in words is "two hundred forty-seven million, two hundred thirty-three thousand, seven hundred ninety-seven".