28465979 has 2 divisors, whose sum is σ = 28465980. Its totient is φ = 28465978.

The previous prime is 28465963. The next prime is 28465981. The reversal of 28465979 is 97956482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28465979 - 2⁴ = 28465963 is a prime.

Together with 28465981, 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 (28465919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14232989 + 14232990.

It is an arithmetic number, because the mean of its divisors is an integer number (14232990).

Almost surely, 2^28465979 is an apocalyptic number.

28465979 is a deficient number, since it is larger than the sum of its proper divisors (1).

28465979 is an equidigital number, since it uses as much as digits as its factorization.

28465979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 28465979 is about 5335.3518159537. The cubic root of 28465979 is about 305.3341460170.

The spelling of 28465979 in words is "twenty-eight million, four hundred sixty-five thousand, nine hundred seventy-nine".