889242631 has 16 divisors (see below), whose sum is σ = 942480000. Its totient is φ = 837730656.

The previous prime is 889242619. The next prime is 889242643. The reversal of 889242631 is 136242988.

It is an interprime number because it is at equal distance from previous prime (889242619) and next prime (889242643).

It is not a de Polignac number, because 889242631 - 2⁹ = 889242119 is a prime.

It is a super-2 number, since 2×889242631² = 1581504913575604322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889242671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235960 + ... + 239698.

It is an arithmetic number, because the mean of its divisors is an integer number (58905000).

Almost surely, 2^889242631 is an apocalyptic number.

889242631 is a deficient number, since it is larger than the sum of its proper divisors (53237369).

889242631 is a wasteful number, since it uses less digits than its factorization.

889242631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its digits is 165888, while the sum is 43.

The square root of 889242631 is about 29820.1715454489. The cubic root of 889242631 is about 961.6272427245.

The spelling of 889242631 in words is "eight hundred eighty-nine million, two hundred forty-two thousand, six hundred thirty-one".