2447864 has 32 divisors (see below), whose sum is σ = 4989600. Its totient is φ = 1121280.

The previous prime is 2447843. The next prime is 2447897. The reversal of 2447864 is 4687442.

It is a Smith number, since the sum of its digits (35) 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 7 ways as a sum of consecutive naturals, for example, 5357 + ... + 5795.

It is an arithmetic number, because the mean of its divisors is an integer number (155925).

2^2447864 is an apocalyptic number.

It is an amenable number.

2447864 is an abundant number, since it is smaller than the sum of its proper divisors (2541736).

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

2447864 is a wasteful number, since it uses less digits than its factorization.

2447864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 499 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 2447864 is about 1564.5651152956. The cubic root of 2447864 is about 134.7707861684.

It can be divided in two parts, 24478 and 64, that added together give a palindrome (24542).

The spelling of 2447864 in words is "two million, four hundred forty-seven thousand, eight hundred sixty-four".