889630257 has 8 divisors (see below), whose sum is σ = 1218232576. Its totient is φ = 577057392.

The previous prime is 889630253. The next prime is 889630267. The reversal of 889630257 is 752036988.

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

It is not a de Polignac number, because 889630257 - 2² = 889630253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889630253) 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, 4007233 + ... + 4007454.

It is an arithmetic number, because the mean of its divisors is an integer number (152279072).

Almost surely, 2^889630257 is an apocalyptic number.

It is an amenable number.

889630257 is a deficient number, since it is larger than the sum of its proper divisors (328602319).

889630257 is a wasteful number, since it uses less digits than its factorization.

889630257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014727.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 889630257 is about 29826.6702298463. The cubic root of 889630257 is about 961.7669487171.

The spelling of 889630257 in words is "eight hundred eighty-nine million, six hundred thirty thousand, two hundred fifty-seven".