28094971 has 2 divisors, whose sum is σ = 28094972. Its totient is φ = 28094970.

The previous prime is 28094933. The next prime is 28094987. The reversal of 28094971 is 17949082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28094971 - 2⁹ = 28094459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28094921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14047485 + 14047486.

It is an arithmetic number, because the mean of its divisors is an integer number (14047486).

Almost surely, 2^28094971 is an apocalyptic number.

28094971 is a deficient number, since it is larger than the sum of its proper divisors (1).

28094971 is an equidigital number, since it uses as much as digits as its factorization.

28094971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 28094971 is about 5300.4689415183. The cubic root of 28094971 is about 304.0018286767.

The spelling of 28094971 in words is "twenty-eight million, ninety-four thousand, nine hundred seventy-one".