28753937 has 2 divisors, whose sum is σ = 28753938. Its totient is φ = 28753936.

The previous prime is 28753909. The next prime is 28753961. The reversal of 28753937 is 73935782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 440896 = 5321^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 28753937 - 2¹² = 28749841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28752937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14376968 + 14376969.

It is an arithmetic number, because the mean of its divisors is an integer number (14376969).

Almost surely, 2^28753937 is an apocalyptic number.

It is an amenable number.

28753937 is a deficient number, since it is larger than the sum of its proper divisors (1).

28753937 is an equidigital number, since it uses as much as digits as its factorization.

28753937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 28753937 is about 5362.2697619572. The cubic root of 28753937 is about 306.3602667211.

The spelling of 28753937 in words is "twenty-eight million, seven hundred fifty-three thousand, nine hundred thirty-seven".