28086492 has 24 divisors (see below), whose sum is σ = 74897536. Its totient is φ = 8024688.

The previous prime is 28086469. The next prime is 28086493. The reversal of 28086492 is 29468082.

It is a super-3 number, since 3×28086492³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28086492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086493) 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, 167098 + ... + 167265.

Almost surely, 2^28086492 is an apocalyptic number.

It is an amenable number.

28086492 is an abundant number, since it is smaller than the sum of its proper divisors (46811044).

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

28086492 is a wasteful number, since it uses less digits than its factorization.

28086492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334377 (or 334375 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 28086492 is about 5299.6690462707. The cubic root of 28086492 is about 303.9712432401.

The spelling of 28086492 in words is "twenty-eight million, eighty-six thousand, four hundred ninety-two".