11649964 has 48 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 5080320.

The previous prime is 11649959. The next prime is 11649971. The reversal of 11649964 is 46994611.

11649964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11649964² = 271443322402592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 15 ways as a sum of consecutive naturals, for example, 91669 + ... + 91795.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^11649964 is an apocalyptic number.

11649964 is the 2159-th heptagonal number.

It is an amenable number.

11649964 is a deficient number, since it is larger than the sum of its proper divisors (11574356).

11649964 is a wasteful number, since it uses less digits than its factorization.

11649964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 11649964 is about 3413.2043595425. The cubic root of 11649964 is about 226.6947840937.

The spelling of 11649964 in words is "eleven million, six hundred forty-nine thousand, nine hundred sixty-four".