2623664 has 10 divisors (see below), whose sum is σ = 5083380. Its totient is φ = 1311824.

The previous prime is 2623657. The next prime is 2623711. The reversal of 2623664 is 4663262.

It is a super-2 number, since 2×2623664² = 13767225569792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81974 + ... + 82005.

It is an arithmetic number, because the mean of its divisors is an integer number (508338).

2^2623664 is an apocalyptic number.

It is an amenable number.

2623664 is a deficient number, since it is larger than the sum of its proper divisors (2459716).

2623664 is a wasteful number, since it uses less digits than its factorization.

2623664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163987 (or 163981 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 2623664 is about 1619.7728235774. The cubic root of 2623664 is about 137.9228021638.

The spelling of 2623664 in words is "two million, six hundred twenty-three thousand, six hundred sixty-four".