28624799 has 16 divisors (see below), whose sum is σ = 34045440. Its totient is φ = 23556960.

The previous prime is 28624777. The next prime is 28624807. The reversal of 28624799 is 99742682.

It is not a de Polignac number, because 28624799 - 2⁸ = 28624543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28624759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17582 + ... + 19140.

It is an arithmetic number, because the mean of its divisors is an integer number (2127840).

Almost surely, 2^28624799 is an apocalyptic number.

28624799 is a deficient number, since it is larger than the sum of its proper divisors (5420641).

28624799 is a wasteful number, since it uses less digits than its factorization.

28624799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670.

The product of its digits is 435456, while the sum is 47.

The square root of 28624799 is about 5350.2148554988. The cubic root of 28624799 is about 305.9009426333.

The spelling of 28624799 in words is "twenty-eight million, six hundred twenty-four thousand, seven hundred ninety-nine".