11990612 has 6 divisors (see below), whose sum is σ = 20983578. Its totient is φ = 5995304.

The previous prime is 11990611. The next prime is 11990617. The reversal of 11990612 is 21609911.

It can be written as a sum of positive squares in only one way, i.e., 10982596 + 1008016 = 3314^2 + 1004^2 .

It is a super-2 number, since 2×11990612² = 287549552269088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498823 + ... + 1498830.

It is an arithmetic number, because the mean of its divisors is an integer number (3497263).

Almost surely, 2^11990612 is an apocalyptic number.

It is an amenable number.

11990612 is a deficient number, since it is larger than the sum of its proper divisors (8992966).

11990612 is a wasteful number, since it uses less digits than its factorization.

11990612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997657 (or 2997655 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 11990612 is about 3462.7463089288. The cubic root of 11990612 is about 228.8831297274.

The spelling of 11990612 in words is "eleven million, nine hundred ninety thousand, six hundred twelve".