28426864 has 20 divisors (see below), whose sum is σ = 55173304. Its totient is φ = 14188608.

The previous prime is 28426861. The next prime is 28426889. The reversal of 28426864 is 46862482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28426861) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10939 + ... + 13285.

Almost surely, 2^28426864 is an apocalyptic number.

It is an amenable number.

28426864 is a deficient number, since it is larger than the sum of its proper divisors (26746440).

28426864 is a wasteful number, since it uses less digits than its factorization.

28426864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112 (or 3106 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 28426864 is about 5331.6849119204. The cubic root of 28426864 is about 305.1942290580.

The spelling of 28426864 in words is "twenty-eight million, four hundred twenty-six thousand, eight hundred sixty-four".