28337879 has 2 divisors, whose sum is σ = 28337880. Its totient is φ = 28337878.

The previous prime is 28337857. The next prime is 28337887. The reversal of 28337879 is 97873382.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28337879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28337809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14168939 + 14168940.

It is an arithmetic number, because the mean of its divisors is an integer number (14168940).

Almost surely, 2^28337879 is an apocalyptic number.

28337879 is a deficient number, since it is larger than the sum of its proper divisors (1).

28337879 is an equidigital number, since it uses as much as digits as its factorization.

28337879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 28337879 is about 5323.3334481319. Note that the first 3 decimals coincide. The cubic root of 28337879 is about 304.8754449760.

The spelling of 28337879 in words is "twenty-eight million, three hundred thirty-seven thousand, eight hundred seventy-nine".