28031682 has 16 divisors (see below), whose sum is σ = 64072512. Its totient is φ = 8009040.

The previous prime is 28031629. The next prime is 28031699. The reversal of 28031682 is 28613082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333669 + ... + 333752.

It is an arithmetic number, because the mean of its divisors is an integer number (4004532).

Almost surely, 2^28031682 is an apocalyptic number.

28031682 is an abundant number, since it is smaller than the sum of its proper divisors (36040830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28031682 is a wasteful number, since it uses less digits than its factorization.

28031682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667433.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28031682 is about 5294.4954433827. The cubic root of 28031682 is about 303.7733840319.

The spelling of 28031682 in words is "twenty-eight million, thirty-one thousand, six hundred eighty-two".