28942379 has 2 divisors, whose sum is σ = 28942380. Its totient is φ = 28942378.

The previous prime is 28942373. The next prime is 28942387. The reversal of 28942379 is 97324982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28942379 - 2⁴ = 28942363 is a prime.

It is a super-2 number, since 2×28942379² = 1675322604359282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28942373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14471189 + 14471190.

It is an arithmetic number, because the mean of its divisors is an integer number (14471190).

Almost surely, 2^28942379 is an apocalyptic number.

28942379 is a deficient number, since it is larger than the sum of its proper divisors (1).

28942379 is an equidigital number, since it uses as much as digits as its factorization.

28942379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 28942379 is about 5379.8121714424. The cubic root of 28942379 is about 307.0280649293.

The spelling of 28942379 in words is "twenty-eight million, nine hundred forty-two thousand, three hundred seventy-nine".