11921064 has 16 divisors (see below), whose sum is σ = 29802720. Its totient is φ = 3973680.

The previous prime is 11921051. The next prime is 11921069. The reversal of 11921064 is 46012911.

It is a super-2 number, since 2×11921064² = 284223533784192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 496711 = 11921064 / (1 + 1 + 9 + 2 + 1 + 0 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (11921069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248332 + ... + 248379.

It is an arithmetic number, because the mean of its divisors is an integer number (1862670).

Almost surely, 2^11921064 is an apocalyptic number.

It is an amenable number.

11921064 is an abundant number, since it is smaller than the sum of its proper divisors (17881656).

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

11921064 is a wasteful number, since it uses less digits than its factorization.

11921064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496720 (or 496716 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11921064 is about 3452.6893865507. The cubic root of 11921064 is about 228.4397484095.

Adding to 11921064 its reverse (46012911), we get a palindrome (57933975).

The spelling of 11921064 in words is "eleven million, nine hundred twenty-one thousand, sixty-four".