12631697 has 16 divisors (see below), whose sum is σ = 14655312. Its totient is φ = 10782720.

The previous prime is 12631693. The next prime is 12631699. The reversal of 12631697 is 79613621.

It can be written as a sum of positive squares in 8 ways, for example, as 4343056 + 8288641 = 2084^2 + 2879^2 .

It is not a de Polignac number, because 12631697 - 2² = 12631693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12631693) 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 15 ways as a sum of consecutive naturals, for example, 13013 + ... + 13949.

It is an arithmetic number, because the mean of its divisors is an integer number (915957).

Almost surely, 2^12631697 is an apocalyptic number.

12631697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12631697 is a deficient number, since it is larger than the sum of its proper divisors (2023615).

12631697 is a wasteful number, since it uses less digits than its factorization.

12631697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its digits is 13608, while the sum is 35.

The square root of 12631697 is about 3554.1098744974. The cubic root of 12631697 is about 232.8916403799.

The spelling of 12631697 in words is "twelve million, six hundred thirty-one thousand, six hundred ninety-seven".