989852731 has 8 divisors (see below), whose sum is σ = 1131468800. Its totient is φ = 848288808.

The previous prime is 989852711. The next prime is 989852753. The reversal of 989852731 is 137258989.

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 989852731 - 2⁷ = 989852603 is a prime.

It is a super-2 number, since 2×989852731² = 1959616858136316722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (989852711) 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, 44710 + ... + 63076.

It is an arithmetic number, because the mean of its divisors is an integer number (141433600).

Almost surely, 2^989852731 is an apocalyptic number.

989852731 is a deficient number, since it is larger than the sum of its proper divisors (141616069).

989852731 is a wasteful number, since it uses less digits than its factorization.

989852731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26073.

The product of its digits is 1088640, while the sum is 52.

The square root of 989852731 is about 31461.9251000316. The cubic root of 989852731 is about 996.6060712791.

The spelling of 989852731 in words is "nine hundred eighty-nine million, eight hundred fifty-two thousand, seven hundred thirty-one".