28654957 has 2 divisors, whose sum is σ = 28654958. Its totient is φ = 28654956.

The previous prime is 28654937. The next prime is 28654963. The reversal of 28654957 is 75945682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 203401 = 5334^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 28654957 - 2²³ = 20266349 is a prime.

It is a super-2 number, since 2×28654957² = 1642213121343698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28654937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14327478 + 14327479.

It is an arithmetic number, because the mean of its divisors is an integer number (14327479).

Almost surely, 2^28654957 is an apocalyptic number.

It is an amenable number.

28654957 is a deficient number, since it is larger than the sum of its proper divisors (1).

28654957 is an equidigital number, since it uses as much as digits as its factorization.

28654957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 46.

The square root of 28654957 is about 5353.0325050386. The cubic root of 28654957 is about 306.0083334624.

The spelling of 28654957 in words is "twenty-eight million, six hundred fifty-four thousand, nine hundred fifty-seven".