28624776 has 16 divisors (see below), whose sum is σ = 71562000. Its totient is φ = 9541584.

The previous prime is 28624759. The next prime is 28624777. The reversal of 28624776 is 67742682.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28624777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596326 + ... + 596373.

It is an arithmetic number, because the mean of its divisors is an integer number (4472625).

Almost surely, 2^28624776 is an apocalyptic number.

It is an amenable number.

28624776 is an abundant number, since it is smaller than the sum of its proper divisors (42937224).

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

28624776 is a wasteful number, since it uses less digits than its factorization.

28624776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192708 (or 1192704 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 28624776 is about 5350.2127060520. The cubic root of 28624776 is about 305.9008607029.

The spelling of 28624776 in words is "twenty-eight million, six hundred twenty-four thousand, seven hundred seventy-six".