425399717 has 4 divisors (see below), whose sum is σ = 425500320. Its totient is φ = 425299116.

The previous prime is 425399707. The next prime is 425399719. The reversal of 425399717 is 717993524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425399717 - 2¹⁶ = 425334181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425399719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43667 + ... + 52512.

It is an arithmetic number, because the mean of its divisors is an integer number (106375080).

Almost surely, 2^425399717 is an apocalyptic number.

It is an amenable number.

425399717 is a deficient number, since it is larger than the sum of its proper divisors (100603).

425399717 is an equidigital number, since it uses as much as digits as its factorization.

425399717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100602.

The product of its digits is 476280, while the sum is 47.

The square root of 425399717 is about 20625.2204109435. The cubic root of 425399717 is about 752.0829310277.

The spelling of 425399717 in words is "four hundred twenty-five million, three hundred ninety-nine thousand, seven hundred seventeen".