28258901 has 8 divisors (see below), whose sum is σ = 31026144. Its totient is φ = 25524720.

The previous prime is 28258883. The next prime is 28258903. The reversal of 28258901 is 10985282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28258901 - 2¹⁴ = 28242517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28258903) 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, 6455 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (3878268).

Almost surely, 2^28258901 is an apocalyptic number.

It is an amenable number.

28258901 is a deficient number, since it is larger than the sum of its proper divisors (2767243).

28258901 is a wasteful number, since it uses less digits than its factorization.

28258901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16531.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28258901 is about 5315.9101760658. The cubic root of 28258901 is about 304.5919509694.

The spelling of 28258901 in words is "twenty-eight million, two hundred fifty-eight thousand, nine hundred one".