425317989 has 8 divisors (see below), whose sum is σ = 567186912. Its totient is φ = 283497200.

The previous prime is 425317987. The next prime is 425318011. The reversal of 425317989 is 989713524.

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

It is a cyclic number.

It is not a de Polignac number, because 425317989 - 2¹ = 425317987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425317987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24022 + ... + 37784.

It is an arithmetic number, because the mean of its divisors is an integer number (70898364).

Almost surely, 2^425317989 is an apocalyptic number.

It is an amenable number.

425317989 is a deficient number, since it is larger than the sum of its proper divisors (141868923).

425317989 is a wasteful number, since it uses less digits than its factorization.

425317989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24067.

The product of its digits is 544320, while the sum is 48.

The square root of 425317989 is about 20623.2390520985. The cubic root of 425317989 is about 752.0347644305.

The spelling of 425317989 in words is "four hundred twenty-five million, three hundred seventeen thousand, nine hundred eighty-nine".