971098631 has 8 divisors (see below), whose sum is σ = 993423360. Its totient is φ = 948843288.

The previous prime is 971098519. The next prime is 971098637. The reversal of 971098631 is 136890179.

971098631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 971098631 - 2²² = 966904327 is a prime.

It is a super-2 number, since 2×971098631² = 1886065102260148322, 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 (971098637) 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, 11510 + ... + 45548.

It is an arithmetic number, because the mean of its divisors is an integer number (124177920).

Almost surely, 2^971098631 is an apocalyptic number.

971098631 is a deficient number, since it is larger than the sum of its proper divisors (22324729).

971098631 is a wasteful number, since it uses less digits than its factorization.

971098631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34693.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 971098631 is about 31162.4554712879. The cubic root of 971098631 is about 990.2718809100.

The spelling of 971098631 in words is "nine hundred seventy-one million, ninety-eight thousand, six hundred thirty-one".