28652986 has 32 divisors (see below), whose sum is σ = 47485440. Its totient is φ = 12921216.

The previous prime is 28652977. The next prime is 28652989. The reversal of 28652986 is 68925682.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (28652989) 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, 62470 + ... + 62926.

It is an arithmetic number, because the mean of its divisors is an integer number (1483920).

Almost surely, 2^28652986 is an apocalyptic number.

28652986 is a deficient number, since it is larger than the sum of its proper divisors (18832454).

28652986 is a wasteful number, since it uses less digits than its factorization.

28652986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558.

The product of its digits is 414720, while the sum is 46.

The square root of 28652986 is about 5352.8484006181. The cubic root of 28652986 is about 306.0013171515.

The spelling of 28652986 in words is "twenty-eight million, six hundred fifty-two thousand, nine hundred eighty-six".