28826401 has 4 divisors (see below), whose sum is σ = 30343600. Its totient is φ = 27309204.

The previous prime is 28826393. The next prime is 28826417. The reversal of 28826401 is 10462882.

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 a cyclic number.

It is not a de Polignac number, because 28826401 - 2³ = 28826393 is a prime.

It is a super-2 number, since 2×28826401² = 1661922789225602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28826201) 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, 758571 + ... + 758608.

It is an arithmetic number, because the mean of its divisors is an integer number (7585900).

Almost surely, 2^28826401 is an apocalyptic number.

It is an amenable number.

28826401 is a deficient number, since it is larger than the sum of its proper divisors (1517199).

28826401 is a wasteful number, since it uses less digits than its factorization.

28826401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517198.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28826401 is about 5369.0223504843. The cubic root of 28826401 is about 306.6174079409.

The spelling of 28826401 in words is "twenty-eight million, eight hundred twenty-six thousand, four hundred one".