9970631 has 4 divisors (see below), whose sum is σ = 10877064. Its totient is φ = 9064200.

The previous prime is 9970621. The next prime is 9970679. The reversal of 9970631 is 1360799.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9970631 - 2⁶ = 9970567 is a prime.

It is a super-2 number, since 2×9970631² = 198826965076322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9970591 and 9970600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9970621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453200 + ... + 453221.

It is an arithmetic number, because the mean of its divisors is an integer number (2719266).

Almost surely, 2^9970631 is an apocalyptic number.

9970631 is a deficient number, since it is larger than the sum of its proper divisors (906433).

9970631 is a wasteful number, since it uses less digits than its factorization.

9970631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906432.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 9970631 is about 3157.6305990410. The cubic root of 9970631 is about 215.2323502151.

It can be divided in two parts, 9970 and 631, that added together give a palindrome (10601).

The spelling of 9970631 in words is "nine million, nine hundred seventy thousand, six hundred thirty-one".