812462957 has 2 divisors, whose sum is σ = 812462958. Its totient is φ = 812462956.

The previous prime is 812462953. The next prime is 812462977. The reversal of 812462957 is 759264218.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803665801 + 8797156 = 28349^2 + 2966^2 .

It is a cyclic number.

It is not a de Polignac number, because 812462957 - 2² = 812462953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812462953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406231478 + 406231479.

It is an arithmetic number, because the mean of its divisors is an integer number (406231479).

Almost surely, 2^812462957 is an apocalyptic number.

It is an amenable number.

812462957 is a deficient number, since it is larger than the sum of its proper divisors (1).

812462957 is an equidigital number, since it uses as much as digits as its factorization.

812462957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 812462957 is about 28503.7358428680. The cubic root of 812462957 is about 933.1136081262.

The spelling of 812462957 in words is "eight hundred twelve million, four hundred sixty-two thousand, nine hundred fifty-seven".