28658862 has 12 divisors (see below), whose sum is σ = 62094240. Its totient is φ = 9552948.

The previous prime is 28658857. The next prime is 28658867. The reversal of 28658862 is 26885682.

28658862 is a `hidden beast` number, since 2 + 8 + 6 + 588 + 62 = 666.

It is an interprime number because it is at equal distance from previous prime (28658857) and next prime (28658867).

It is a super-2 number, since 2×28658862² = 1642660742270088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28658867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796062 + ... + 796097.

It is an arithmetic number, because the mean of its divisors is an integer number (5174520).

Almost surely, 2^28658862 is an apocalyptic number.

28658862 is an abundant number, since it is smaller than the sum of its proper divisors (33435378).

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

28658862 is a wasteful number, since it uses less digits than its factorization.

28658862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592167 (or 1592164 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 28658862 is about 5353.3972391370. The cubic root of 28658862 is about 306.0222334223.

The spelling of 28658862 in words is "twenty-eight million, six hundred fifty-eight thousand, eight hundred sixty-two".