425311989 has 8 divisors (see below), whose sum is σ = 567478752. Its totient is φ = 283343280.

The previous prime is 425311987. The next prime is 425312009. The reversal of 425311989 is 989113524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425311989 - 2¹ = 425311987 is a prime.

It is a super-2 number, since 2×425311989² = 361780575974272242, 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 425311989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425311981) 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 7 ways as a sum of consecutive naturals, for example, 44427 + ... + 53144.

It is an arithmetic number, because the mean of its divisors is an integer number (70934844).

Almost surely, 2^425311989 is an apocalyptic number.

It is an amenable number.

425311989 is a deficient number, since it is larger than the sum of its proper divisors (142166763).

425311989 is a wasteful number, since it uses less digits than its factorization.

425311989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99027.

The product of its digits is 77760, while the sum is 42.

The square root of 425311989 is about 20623.0935846201. The cubic root of 425311989 is about 752.0312280726.

The spelling of 425311989 in words is "four hundred twenty-five million, three hundred eleven thousand, nine hundred eighty-nine".