11613972 has 12 divisors (see below), whose sum is σ = 27099296. Its totient is φ = 3871320.

The previous prime is 11613937. The next prime is 11613977. The reversal of 11613972 is 27931611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11613977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483904 + ... + 483927.

Almost surely, 2^11613972 is an apocalyptic number.

11613972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11613972 is an abundant number, since it is smaller than the sum of its proper divisors (15485324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11613972 is a wasteful number, since it uses less digits than its factorization.

11613972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967838 (or 967836 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 11613972 is about 3407.9278161370. The cubic root of 11613972 is about 226.4610890767.

The spelling of 11613972 in words is "eleven million, six hundred thirteen thousand, nine hundred seventy-two".