28854691 has 2 divisors, whose sum is σ = 28854692. Its totient is φ = 28854690.

The previous prime is 28854667. The next prime is 28854703. The reversal of 28854691 is 19645882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28854691 - 2⁵ = 28854659 is a prime.

It is not a weakly prime, because it can be changed into another prime (28804691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14427345 + 14427346.

It is an arithmetic number, because the mean of its divisors is an integer number (14427346).

Almost surely, 2^28854691 is an apocalyptic number.

28854691 is a deficient number, since it is larger than the sum of its proper divisors (1).

28854691 is an equidigital number, since it uses as much as digits as its factorization.

28854691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 28854691 is about 5371.6562622714. The cubic root of 28854691 is about 306.7176791058.

The spelling of 28854691 in words is "twenty-eight million, eight hundred fifty-four thousand, six hundred ninety-one".