28808058 has 16 divisors (see below), whose sum is σ = 57752640. Its totient is φ = 9579936.

The previous prime is 28808051. The next prime is 28808071. The reversal of 28808058 is 85080882.

It is a super-3 number, since 3×28808058³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28808051) 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, 2835 + ... + 8102.

It is an arithmetic number, because the mean of its divisors is an integer number (3609540).

Almost surely, 2^28808058 is an apocalyptic number.

28808058 is an abundant number, since it is smaller than the sum of its proper divisors (28944582).

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

28808058 is a wasteful number, since it uses less digits than its factorization.

28808058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381.

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 28808058 is about 5367.3138533162. The cubic root of 28808058 is about 306.5523578907.

The spelling of 28808058 in words is "twenty-eight million, eight hundred eight thousand, fifty-eight".