28573357 has 2 divisors, whose sum is σ = 28573358. Its totient is φ = 28573356.

The previous prime is 28573319. The next prime is 28573393. The reversal of 28573357 is 75337582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 121801 = 5334^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 28573357 - 2⁷ = 28573229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28573157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14286678 + 14286679.

It is an arithmetic number, because the mean of its divisors is an integer number (14286679).

Almost surely, 2^28573357 is an apocalyptic number.

It is an amenable number.

28573357 is a deficient number, since it is larger than the sum of its proper divisors (1).

28573357 is an equidigital number, since it uses as much as digits as its factorization.

28573357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 40.

The square root of 28573357 is about 5345.4052231800. The cubic root of 28573357 is about 305.7175865596.

The spelling of 28573357 in words is "twenty-eight million, five hundred seventy-three thousand, three hundred fifty-seven".