1009631 has 8 divisors (see below), whose sum is σ = 1204224. Its totient is φ = 827640.

The previous prime is 1009627. The next prime is 1009637. The reversal of 1009631 is 1369001.

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 1009631 - 2² = 1009627 is a prime.

It is a super-2 number, since 2×1009631² = 2038709512322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009637) 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, 2975 + ... + 3296.

It is an arithmetic number, because the mean of its divisors is an integer number (150528).

2^1009631 is an apocalyptic number.

1009631 is a deficient number, since it is larger than the sum of its proper divisors (194593).

1009631 is an equidigital number, since it uses as much as digits as its factorization.

1009631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1009631 is about 1004.8039609795. The cubic root of 1009631 is about 100.3200081886.

The spelling of 1009631 in words is "one million, nine thousand, six hundred thirty-one".