28617707 has 2 divisors, whose sum is σ = 28617708. Its totient is φ = 28617706.

The previous prime is 28617697. The next prime is 28617709. The reversal of 28617707 is 70771682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28617707 - 2¹⁰ = 28616683 is a prime.

Together with 28617709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28617709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14308853 + 14308854.

It is an arithmetic number, because the mean of its divisors is an integer number (14308854).

Almost surely, 2^28617707 is an apocalyptic number.

28617707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28617707 is an equidigital number, since it uses as much as digits as its factorization.

28617707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 28617707 is about 5349.5520373205. The cubic root of 28617707 is about 305.8756774931.

The spelling of 28617707 in words is "twenty-eight million, six hundred seventeen thousand, seven hundred seven".