28572699 has 8 divisors (see below), whose sum is σ = 40338000. Its totient is φ = 17927936.

The previous prime is 28572679. The next prime is 28572703. The reversal of 28572699 is 99627582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28572699 - 2⁷ = 28572571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28572679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280074 + ... + 280175.

It is an arithmetic number, because the mean of its divisors is an integer number (5042250).

Almost surely, 2^28572699 is an apocalyptic number.

28572699 is a deficient number, since it is larger than the sum of its proper divisors (11765301).

28572699 is a wasteful number, since it uses less digits than its factorization.

28572699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560269.

The product of its digits is 544320, while the sum is 48.

The square root of 28572699 is about 5345.3436746387. The cubic root of 28572699 is about 305.7152398079.

The spelling of 28572699 in words is "twenty-eight million, five hundred seventy-two thousand, six hundred ninety-nine".