425926989 has 6 divisors (see below), whose sum is σ = 615227886. Its totient is φ = 283951320.

The previous prime is 425926937. The next prime is 425927039. The reversal of 425926989 is 989629524.

It is a happy number.

425926989 is a `hidden beast` number, since 42 + 592 + 6 + 9 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 238702500 + 187224489 = 15450^2 + 13683^2 .

It is not a de Polignac number, because 425926989 - 2⁷ = 425926861 is a prime.

It is a super-2 number, since 2×425926989² = 362827599917212242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425926889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23662602 + ... + 23662619.

It is an arithmetic number, because the mean of its divisors is an integer number (102537981).

Almost surely, 2^425926989 is an apocalyptic number.

It is an amenable number.

425926989 is a deficient number, since it is larger than the sum of its proper divisors (189300897).

425926989 is a wasteful number, since it uses less digits than its factorization.

425926989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47325227 (or 47325224 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 425926989 is about 20637.9986675065. The cubic root of 425926989 is about 752.3935318809.

The spelling of 425926989 in words is "four hundred twenty-five million, nine hundred twenty-six thousand, nine hundred eighty-nine".