28332379 has 2 divisors, whose sum is σ = 28332380. Its totient is φ = 28332378.

The previous prime is 28332347. The next prime is 28332407. The reversal of 28332379 is 97323382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28332379 - 2⁵ = 28332347 is a prime.

It is not a weakly prime, because it can be changed into another prime (28332329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166189 + 14166190.

It is an arithmetic number, because the mean of its divisors is an integer number (14166190).

Almost surely, 2^28332379 is an apocalyptic number.

28332379 is a deficient number, since it is larger than the sum of its proper divisors (1).

28332379 is an equidigital number, since it uses as much as digits as its factorization.

28332379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 28332379 is about 5322.8168294616. The cubic root of 28332379 is about 304.8557196295.

The spelling of 28332379 in words is "twenty-eight million, three hundred thirty-two thousand, three hundred seventy-nine".