11621772 has 24 divisors (see below), whose sum is σ = 30130800. Its totient is φ = 3873888.

The previous prime is 11621723. The next prime is 11621773. The reversal of 11621772 is 27712611.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11621773) 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 7 ways as a sum of consecutive naturals, for example, 53697 + ... + 53912.

It is an arithmetic number, because the mean of its divisors is an integer number (1255450).

Almost surely, 2^11621772 is an apocalyptic number.

11621772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11621772 is an abundant number, since it is smaller than the sum of its proper divisors (18509028).

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

11621772 is a wasteful number, since it uses less digits than its factorization.

11621772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107622 (or 107614 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 11621772 is about 3409.0720144931. The cubic root of 11621772 is about 226.5117751871.

The spelling of 11621772 in words is "eleven million, six hundred twenty-one thousand, seven hundred seventy-two".