863752957 has 2 divisors, whose sum is σ = 863752958. Its totient is φ = 863752956.

The previous prime is 863752889. The next prime is 863752991. The reversal of 863752957 is 759257368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 863243161 + 509796 = 29381^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 863752957 - 2⁷ = 863752829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863752157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431876478 + 431876479.

It is an arithmetic number, because the mean of its divisors is an integer number (431876479).

Almost surely, 2^863752957 is an apocalyptic number.

It is an amenable number.

863752957 is a deficient number, since it is larger than the sum of its proper divisors (1).

863752957 is an equidigital number, since it uses as much as digits as its factorization.

863752957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 52.

The square root of 863752957 is about 29389.6743261983. The cubic root of 863752957 is about 952.3498456021.

The spelling of 863752957 in words is "eight hundred sixty-three million, seven hundred fifty-two thousand, nine hundred fifty-seven".