2297864 has 8 divisors (see below), whose sum is σ = 4308510. Its totient is φ = 1148928.

The previous prime is 2297863. The next prime is 2297881. The reversal of 2297864 is 4687922.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 195364 = 1450^2 + 442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 9⁴ + 7 + 8⁷ + 6⁶ + 4⁷ .

It is not an unprimeable number, because it can be changed into a prime (2297863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143609 + ... + 143624.

2^2297864 is an apocalyptic number.

It is an amenable number.

2297864 is a deficient number, since it is larger than the sum of its proper divisors (2010646).

2297864 is a wasteful number, since it uses less digits than its factorization.

2297864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287239 (or 287235 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 2297864 is about 1515.8707068876. The cubic root of 2297864 is about 131.9597367252.

The spelling of 2297864 in words is "two million, two hundred ninety-seven thousand, eight hundred sixty-four".