28876807 has 2 divisors, whose sum is σ = 28876808. Its totient is φ = 28876806.

The previous prime is 28876781. The next prime is 28876819. The reversal of 28876807 is 70867882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28876807 - 2²³ = 20488199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28876877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14438403 + 14438404.

It is an arithmetic number, because the mean of its divisors is an integer number (14438404).

Almost surely, 2^28876807 is an apocalyptic number.

28876807 is a deficient number, since it is larger than the sum of its proper divisors (1).

28876807 is an equidigital number, since it uses as much as digits as its factorization.

28876807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 28876807 is about 5373.7144509175. The cubic root of 28876807 is about 306.7960214900.

The spelling of 28876807 in words is "twenty-eight million, eight hundred seventy-six thousand, eight hundred seven".