28854401 has 2 divisors, whose sum is σ = 28854402. Its totient is φ = 28854400.

The previous prime is 28854383. The next prime is 28854473. The reversal of 28854401 is 10445882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24010000 + 4844401 = 4900^2 + 2201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28854401 is a prime.

It is not a weakly prime, because it can be changed into another prime (28853401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14427200 + 14427201.

It is an arithmetic number, because the mean of its divisors is an integer number (14427201).

Almost surely, 2^28854401 is an apocalyptic number.

It is an amenable number.

28854401 is a deficient number, since it is larger than the sum of its proper divisors (1).

28854401 is an equidigital number, since it uses as much as digits as its factorization.

28854401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 28854401 is about 5371.6292686670. The cubic root of 28854401 is about 306.7166515614.

The spelling of 28854401 in words is "twenty-eight million, eight hundred fifty-four thousand, four hundred one".