28857954 has 16 divisors (see below), whose sum is σ = 58138848. Its totient is φ = 9548832.

The previous prime is 28857949. The next prime is 28857971. The reversal of 28857954 is 45975882.

It is a super-2 number, since 2×28857954² = 1665563018132232, which contains 22 as substring.

It is a Curzon number.

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, 16732 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (3633678).

Almost surely, 2^28857954 is an apocalyptic number.

28857954 is an abundant number, since it is smaller than the sum of its proper divisors (29280894).

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

28857954 is a wasteful number, since it uses less digits than its factorization.

28857954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35249.

The product of its digits is 806400, while the sum is 48.

The square root of 28857954 is about 5371.9599775129. The cubic root of 28857954 is about 306.7292402769.

The spelling of 28857954 in words is "twenty-eight million, eight hundred fifty-seven thousand, nine hundred fifty-four".