28624715 has 16 divisors (see below), whose sum is σ = 39813120. Its totient is φ = 19350240.

The previous prime is 28624699. The next prime is 28624723. The reversal of 28624715 is 51742682.

It is not a de Polignac number, because 28624715 - 2⁴ = 28624699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3275 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^28624715 is an apocalyptic number.

28624715 is a deficient number, since it is larger than the sum of its proper divisors (11188405).

28624715 is a wasteful number, since it uses less digits than its factorization.

28624715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602.

The product of its digits is 26880, while the sum is 35.

The square root of 28624715 is about 5350.2070053410. The cubic root of 28624715 is about 305.9006434090.

The spelling of 28624715 in words is "twenty-eight million, six hundred twenty-four thousand, seven hundred fifteen".