13569970 has 32 divisors (see below), whose sum is σ = 25654320. Its totient is φ = 5160960.

The previous prime is 13569967. The next prime is 13569991. The reversal of 13569970 is 7996531.

It can be written as a sum of positive squares in 8 ways, for example, as 9541921 + 4028049 = 3089^2 + 2007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20850 + ... + 21490.

Almost surely, 2^13569970 is an apocalyptic number.

13569970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13569970 is a deficient number, since it is larger than the sum of its proper divisors (12084350).

13569970 is a wasteful number, since it uses less digits than its factorization.

13569970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 13569970 is about 3683.7440193368. The cubic root of 13569970 is about 238.5208211689.

The spelling of 13569970 in words is "thirteen million, five hundred sixty-nine thousand, nine hundred seventy".