425658239 has 4 divisors (see below), whose sum is σ = 426730824. Its totient is φ = 424585656.

The previous prime is 425658229. The next prime is 425658251. The reversal of 425658239 is 932856524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425658239 is a prime.

It is a super-2 number, since 2×425658239² = 362369872857162242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425658239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425658209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535697 + ... + 536490.

It is an arithmetic number, because the mean of its divisors is an integer number (106682706).

Almost surely, 2^425658239 is an apocalyptic number.

425658239 is a deficient number, since it is larger than the sum of its proper divisors (1072585).

425658239 is a wasteful number, since it uses less digits than its factorization.

425658239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072584.

The product of its digits is 518400, while the sum is 44.

The square root of 425658239 is about 20631.4865920999. The cubic root of 425658239 is about 752.2352509933.

The spelling of 425658239 in words is "four hundred twenty-five million, six hundred fifty-eight thousand, two hundred thirty-nine".