812025407 has 2 divisors, whose sum is σ = 812025408. Its totient is φ = 812025406.

The previous prime is 812025359. The next prime is 812025449. The reversal of 812025407 is 704520218.

812025407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812025407 - 2²⁴ = 795248191 is a prime.

It is a super-2 number, since 2×812025407² = 1318770523227031298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 812025407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812025007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406012703 + 406012704.

It is an arithmetic number, because the mean of its divisors is an integer number (406012704).

Almost surely, 2^812025407 is an apocalyptic number.

812025407 is a deficient number, since it is larger than the sum of its proper divisors (1).

812025407 is an equidigital number, since it uses as much as digits as its factorization.

812025407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 812025407 is about 28496.0594995168. The cubic root of 812025407 is about 932.9460693393.

The spelling of 812025407 in words is "eight hundred twelve million, twenty-five thousand, four hundred seven".