28893607 has 2 divisors, whose sum is σ = 28893608. Its totient is φ = 28893606.

The previous prime is 28893587. The next prime is 28893629. The reversal of 28893607 is 70639882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28893607 - 2¹¹ = 28891559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28893677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14446803 + 14446804.

It is an arithmetic number, because the mean of its divisors is an integer number (14446804).

Almost surely, 2^28893607 is an apocalyptic number.

28893607 is a deficient number, since it is larger than the sum of its proper divisors (1).

28893607 is an equidigital number, since it uses as much as digits as its factorization.

28893607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 28893607 is about 5375.2773881912. The cubic root of 28893607 is about 306.8555060670.

The spelling of 28893607 in words is "twenty-eight million, eight hundred ninety-three thousand, six hundred seven".