28662707 has 2 divisors, whose sum is σ = 28662708. Its totient is φ = 28662706.

The previous prime is 28662677. The next prime is 28662709. The reversal of 28662707 is 70726682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28662707 - 2¹⁰ = 28661683 is a prime.

Together with 28662709, 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 (28662709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14331353 + 14331354.

It is an arithmetic number, because the mean of its divisors is an integer number (14331354).

Almost surely, 2^28662707 is an apocalyptic number.

28662707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28662707 is an equidigital number, since it uses as much as digits as its factorization.

28662707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 28662707 is about 5353.7563448480. The cubic root of 28662707 is about 306.0359185769.

The spelling of 28662707 in words is "twenty-eight million, six hundred sixty-two thousand, seven hundred seven".