5278864 has 30 divisors (see below), whose sum is σ = 10555314. Its totient is φ = 2557440.

The previous prime is 5278843. The next prime is 5278877. The reversal of 5278864 is 4688725.

It can be written as a sum of positive squares in 3 ways, for example, as 3640464 + 1638400 = 1908^2 + 1280^2 .

It is an Ulam number.

Its product of digits (107520) is a multiple of the sum of its prime divisors (280).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21784 + ... + 22024.

Almost surely, 2^5278864 is an apocalyptic number.

It is an amenable number.

5278864 is a deficient number, since it is larger than the sum of its proper divisors (5276450).

5278864 is a wasteful number, since it uses less digits than its factorization.

5278864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 280 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 5278864 is about 2297.5778550465. The cubic root of 5278864 is about 174.1192646909.

The spelling of 5278864 in words is "five million, two hundred seventy-eight thousand, eight hundred sixty-four".