28458201 has 4 divisors (see below), whose sum is σ = 37944272. Its totient is φ = 18972132.

The previous prime is 28458173. The next prime is 28458229. The reversal of 28458201 is 10285482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (28458173) and next prime (28458229).

It is not a de Polignac number, because 28458201 - 2⁵ = 28458169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28458271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743031 + ... + 4743036.

It is an arithmetic number, because the mean of its divisors is an integer number (9486068).

Almost surely, 2^28458201 is an apocalyptic number.

It is an amenable number.

28458201 is a deficient number, since it is larger than the sum of its proper divisors (9486071).

28458201 is an equidigital number, since it uses as much as digits as its factorization.

28458201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486070.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 28458201 is about 5334.6228545231. The cubic root of 28458201 is about 305.3063338073.

It can be divided in two parts, 284 and 58201, that added together give a palindrome (58485).

The spelling of 28458201 in words is "twenty-eight million, four hundred fifty-eight thousand, two hundred one".