28975673 has 2 divisors, whose sum is σ = 28975674. Its totient is φ = 28975672.

The previous prime is 28975663. The next prime is 28975693. The reversal of 28975673 is 37657982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15077689 + 13897984 = 3883^2 + 3728^2 .

It is a cyclic number.

It is not a de Polignac number, because 28975673 - 2⁴ = 28975657 is a prime.

It is not a weakly prime, because it can be changed into another prime (28975603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14487836 + 14487837.

It is an arithmetic number, because the mean of its divisors is an integer number (14487837).

Almost surely, 2^28975673 is an apocalyptic number.

It is an amenable number.

28975673 is a deficient number, since it is larger than the sum of its proper divisors (1).

28975673 is an equidigital number, since it uses as much as digits as its factorization.

28975673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 28975673 is about 5382.9056280043. The cubic root of 28975673 is about 307.1457502007.

The spelling of 28975673 in words is "twenty-eight million, nine hundred seventy-five thousand, six hundred seventy-three".