425365679 has 4 divisors (see below), whose sum is σ = 425410440. Its totient is φ = 425320920.

The previous prime is 425365643. The next prime is 425365739. The reversal of 425365679 is 976563524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425365679 is a prime.

It is a super-2 number, since 2×425365679² = 361871921742262082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425365609) 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, 1844 + ... + 29225.

It is an arithmetic number, because the mean of its divisors is an integer number (106352610).

Almost surely, 2^425365679 is an apocalyptic number.

425365679 is a deficient number, since it is larger than the sum of its proper divisors (44761).

425365679 is a wasteful number, since it uses less digits than its factorization.

425365679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44760.

The product of its digits is 1360800, while the sum is 47.

The square root of 425365679 is about 20624.3952396185. The cubic root of 425365679 is about 752.0628713986.

The spelling of 425365679 in words is "four hundred twenty-five million, three hundred sixty-five thousand, six hundred seventy-nine".