28514939 has 2 divisors, whose sum is σ = 28514940. Its totient is φ = 28514938.

The previous prime is 28514923. The next prime is 28514951. The reversal of 28514939 is 93941582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28514939 - 2⁴ = 28514923 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 28514896 and 28514905.

It is not a weakly prime, because it can be changed into another prime (28514039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14257469 + 14257470.

It is an arithmetic number, because the mean of its divisors is an integer number (14257470).

Almost surely, 2^28514939 is an apocalyptic number.

28514939 is a deficient number, since it is larger than the sum of its proper divisors (1).

28514939 is an equidigital number, since it uses as much as digits as its factorization.

28514939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 28514939 is about 5339.9381082556. The cubic root of 28514939 is about 305.5090986903.

The spelling of 28514939 in words is "twenty-eight million, five hundred fourteen thousand, nine hundred thirty-nine".