11969690 has 16 divisors (see below), whose sum is σ = 21705192. Its totient is φ = 4752384.

The previous prime is 11969687. The next prime is 11969701. The reversal of 11969690 is 9696911.

11969690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9406489 + 2563201 = 3067^2 + 1601^2 .

It is a super-2 number, since 2×11969690² = 286546957392200, which contains 22 as substring.

It is a Curzon number.

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, 2999 + ... + 5738.

Almost surely, 2^11969690 is an apocalyptic number.

11969690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11969690 is a deficient number, since it is larger than the sum of its proper divisors (9735502).

11969690 is a wasteful number, since it uses less digits than its factorization.

11969690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 11969690 is about 3459.7239774294. The cubic root of 11969690 is about 228.7499288323.

It can be divided in two parts, 1 and 1969690, that added together give a palindrome (1969691).

The spelling of 11969690 in words is "eleven million, nine hundred sixty-nine thousand, six hundred ninety".