28695679 has 2 divisors, whose sum is σ = 28695680. Its totient is φ = 28695678.

The previous prime is 28695671. The next prime is 28695701. The reversal of 28695679 is 97659682.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28695679 - 2³ = 28695671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28695671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14347839 + 14347840.

It is an arithmetic number, because the mean of its divisors is an integer number (14347840).

Almost surely, 2^28695679 is an apocalyptic number.

28695679 is a deficient number, since it is larger than the sum of its proper divisors (1).

28695679 is an equidigital number, since it uses as much as digits as its factorization.

28695679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 28695679 is about 5356.8347930471. The cubic root of 28695679 is about 306.1532225653.

The spelling of 28695679 in words is "twenty-eight million, six hundred ninety-five thousand, six hundred seventy-nine".