28818607 has 2 divisors, whose sum is σ = 28818608. Its totient is φ = 28818606.

The previous prime is 28818599. The next prime is 28818641. The reversal of 28818607 is 70681882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28818607 - 2³ = 28818599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28818607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28818677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14409303 + 14409304.

It is an arithmetic number, because the mean of its divisors is an integer number (14409304).

Almost surely, 2^28818607 is an apocalyptic number.

28818607 is a deficient number, since it is larger than the sum of its proper divisors (1).

28818607 is an equidigital number, since it uses as much as digits as its factorization.

28818607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28818607 is about 5368.2964709487. The cubic root of 28818607 is about 306.5897713369.

The spelling of 28818607 in words is "twenty-eight million, eight hundred eighteen thousand, six hundred seven".