28725662 has 24 divisors (see below), whose sum is σ = 50469624. Its totient is φ = 12226032.

The previous prime is 28725611. The next prime is 28725691. The reversal of 28725662 is 26652782.

It is a super-4 number, since 4×28725662⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14453 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (2102901).

Almost surely, 2^28725662 is an apocalyptic number.

28725662 is a deficient number, since it is larger than the sum of its proper divisors (21743962).

28725662 is a wasteful number, since it uses less digits than its factorization.

28725662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040 (or 2033 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 28725662 is about 5359.6326366646. The cubic root of 28725662 is about 306.2598146514.

The spelling of 28725662 in words is "twenty-eight million, seven hundred twenty-five thousand, six hundred sixty-two".