2297664 has 42 divisors (see below), whose sum is σ = 6587490. Its totient is φ = 765696.

The previous prime is 2297657. The next prime is 2297671. The reversal of 2297664 is 4667922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2297657) and next prime (2297671).

It can be written as a sum of positive squares in only one way, i.e., 1937664 + 360000 = 1392^2 + 600^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1419 + ... + 2570.

It is an arithmetic number, because the mean of its divisors is an integer number (156845).

2^2297664 is an apocalyptic number.

2297664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2297664 is an abundant number, since it is smaller than the sum of its proper divisors (4289826).

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

2297664 is a wasteful number, since it uses less digits than its factorization.

2297664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007 (or 3994 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2297664 is about 1515.8047367653. The cubic root of 2297664 is about 131.9559081387.

The spelling of 2297664 in words is "two million, two hundred ninety-seven thousand, six hundred sixty-four".