28620572 has 12 divisors (see below), whose sum is σ = 50582616. Its totient is φ = 14168400.

The previous prime is 28620569. The next prime is 28620587. The reversal of 28620572 is 27502682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35018 + ... + 35825.

It is an arithmetic number, because the mean of its divisors is an integer number (4215218).

Almost surely, 2^28620572 is an apocalyptic number.

It is an amenable number.

28620572 is a deficient number, since it is larger than the sum of its proper divisors (21962044).

28620572 is a wasteful number, since it uses less digits than its factorization.

28620572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70948 (or 70946 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 28620572 is about 5349.8198100497. The cubic root of 28620572 is about 305.8858845137.

It can be divided in two parts, 28620 and 572, that added together give a palindrome (29192).

The spelling of 28620572 in words is "twenty-eight million, six hundred twenty thousand, five hundred seventy-two".