11721464 has 16 divisors (see below), whose sum is σ = 22279920. Its totient is φ = 5780160.

The previous prime is 11721443. The next prime is 11721473. The reversal of 11721464 is 46412711.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9452 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (1392495).

Almost surely, 2^11721464 is an apocalyptic number.

It is an amenable number.

11721464 is a deficient number, since it is larger than the sum of its proper divisors (10558456).

11721464 is a wasteful number, since it uses less digits than its factorization.

11721464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20150 (or 20146 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 11721464 is about 3423.6623665309. The cubic root of 11721464 is about 227.1576075605.

The spelling of 11721464 in words is "eleven million, seven hundred twenty-one thousand, four hundred sixty-four".