12636970 has 8 divisors (see below), whose sum is σ = 22746564. Its totient is φ = 5054784.

The previous prime is 12636931. The next prime is 12636971. The reversal of 12636970 is 7963621.

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 755161 = 3447^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12636971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631839 + ... + 631858.

Almost surely, 2^12636970 is an apocalyptic number.

12636970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12636970 is a deficient number, since it is larger than the sum of its proper divisors (10109594).

12636970 is a wasteful number, since it uses less digits than its factorization.

12636970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263704.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 12636970 is about 3554.8516143434. The cubic root of 12636970 is about 232.9240421171.

The spelling of 12636970 in words is "twelve million, six hundred thirty-six thousand, nine hundred seventy".