28454901 has 8 divisors (see below), whose sum is σ = 37982400. Its totient is φ = 18948672.

The previous prime is 28454879. The next prime is 28454911. The reversal of 28454901 is 10945482.

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

It is not a de Polignac number, because 28454901 - 2⁹ = 28454389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454911) 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, 1876 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (4747800).

Almost surely, 2^28454901 is an apocalyptic number.

It is an amenable number.

28454901 is a deficient number, since it is larger than the sum of its proper divisors (9527499).

28454901 is an equidigital number, since it uses as much as digits as its factorization.

28454901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28454901 is about 5334.3135453402. The cubic root of 28454901 is about 305.2945322901.

The spelling of 28454901 in words is "twenty-eight million, four hundred fifty-four thousand, nine hundred one".