28472958 has 20 divisors (see below), whose sum is σ = 63800880. Its totient is φ = 9490932.

The previous prime is 28472947. The next prime is 28472989. The reversal of 28472958 is 85927482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87718 + ... + 88041.

It is an arithmetic number, because the mean of its divisors is an integer number (3190044).

Almost surely, 2^28472958 is an apocalyptic number.

28472958 is an abundant number, since it is smaller than the sum of its proper divisors (35327922).

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

28472958 is a wasteful number, since it uses less digits than its factorization.

28472958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175773 (or 175764 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28472958 is about 5336.0058095920. The cubic root of 28472958 is about 305.3590968876.

The spelling of 28472958 in words is "twenty-eight million, four hundred seventy-two thousand, nine hundred fifty-eight".