11969570 has 16 divisors (see below), whose sum is σ = 21609720. Its totient is φ = 4773504.

The previous prime is 11969569. The next prime is 11969597. The reversal of 11969570 is 7596911.

It can be written as a sum of positive squares in 4 ways, for example, as 10067929 + 1901641 = 3173^2 + 1379^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126 + ... + 5334.

Almost surely, 2^11969570 is an apocalyptic number.

11969570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11969570 is a deficient number, since it is larger than the sum of its proper divisors (9640150).

11969570 is a wasteful number, since it uses less digits than its factorization.

11969570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 11969570 is about 3459.7066349620. The cubic root of 11969570 is about 228.7491643992.

It can be divided in two parts, 1196 and 9570, that multiplied together give a triangular number (11445720 = T₄₇₈₄).

The spelling of 11969570 in words is "eleven million, nine hundred sixty-nine thousand, five hundred seventy".