425916789 has 16 divisors (see below), whose sum is σ = 577989120. Its totient is φ = 278918640.

The previous prime is 425916779. The next prime is 425916877. The reversal of 425916789 is 987619524.

It is not a de Polignac number, because 425916789 - 2⁷ = 425916661 is a prime.

It is a super-2 number, since 2×425916789² = 362810222304141042, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425916779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73384 + ... + 78974.

It is an arithmetic number, because the mean of its divisors is an integer number (36124320).

Almost surely, 2^425916789 is an apocalyptic number.

It is an amenable number.

425916789 is a deficient number, since it is larger than the sum of its proper divisors (152072331).

425916789 is a wasteful number, since it uses less digits than its factorization.

425916789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040.

The product of its digits is 1088640, while the sum is 51.

The square root of 425916789 is about 20637.7515490424. The cubic root of 425916789 is about 752.3875257848.

The spelling of 425916789 in words is "four hundred twenty-five million, nine hundred sixteen thousand, seven hundred eighty-nine".