2207664 has 30 divisors (see below), whose sum is σ = 6178796. Its totient is φ = 735840.

The previous prime is 2207633. The next prime is 2207677. The reversal of 2207664 is 4667022.

2207664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 7522 + ... + 7809.

2^2207664 is an apocalyptic number.

2207664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2207664 is an abundant number, since it is smaller than the sum of its proper divisors (3971132).

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

2207664 is a wasteful number, since it uses less digits than its factorization.

2207664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15345 (or 15336 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2207664 is about 1485.8209851796. The cubic root of 2207664 is about 130.2099959055.

The spelling of 2207664 in words is "two million, two hundred seven thousand, six hundred sixty-four".