28058401 has 8 divisors (see below), whose sum is σ = 32298560. Its totient is φ = 23876208.

The previous prime is 28058377. The next prime is 28058411. The reversal of 28058401 is 10485082.

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 28058401 - 2¹⁵ = 28025633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28058401.

It is not an unprimeable number, because it can be changed into a prime (28058411) 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, 13446 + ... + 15391.

It is an arithmetic number, because the mean of its divisors is an integer number (4037320).

Almost surely, 2^28058401 is an apocalyptic number.

It is an amenable number.

28058401 is a deficient number, since it is larger than the sum of its proper divisors (4240159).

28058401 is a wasteful number, since it uses less digits than its factorization.

28058401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28983.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 28058401 is about 5297.0181234351. The cubic root of 28058401 is about 303.8698694253.

The spelling of 28058401 in words is "twenty-eight million, fifty-eight thousand, four hundred one".