980633731 has 12 divisors (see below), whose sum is σ = 1231871536. Its totient is φ = 764129520.

The previous prime is 980633711. The next prime is 980633737. The reversal of 980633731 is 137336089.

It is not a de Polignac number, because 980633731 - 2⁵ = 980633699 is a prime.

It is a super-2 number, since 2×980633731² = 1923285028749960722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (980633737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 578040 + ... + 579733.

Almost surely, 2^980633731 is an apocalyptic number.

980633731 is a deficient number, since it is larger than the sum of its proper divisors (251237805).

980633731 is a wasteful number, since it uses less digits than its factorization.

980633731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157802 (or 1157791 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 980633731 is about 31315.0719462689. The cubic root of 980633731 is about 993.5024502859.

The spelling of 980633731 in words is "nine hundred eighty million, six hundred thirty-three thousand, seven hundred thirty-one".