28750441 has 2 divisors, whose sum is σ = 28750442. Its totient is φ = 28750440.

The previous prime is 28750427. The next prime is 28750487. The reversal of 28750441 is 14405782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25290841 + 3459600 = 5029^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 28750441 - 2¹¹ = 28748393 is a prime.

It is not a weakly prime, because it can be changed into another prime (28750411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14375220 + 14375221.

It is an arithmetic number, because the mean of its divisors is an integer number (14375221).

Almost surely, 2^28750441 is an apocalyptic number.

It is an amenable number.

28750441 is a deficient number, since it is larger than the sum of its proper divisors (1).

28750441 is an equidigital number, since it uses as much as digits as its factorization.

28750441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 28750441 is about 5361.9437706861. The cubic root of 28750441 is about 306.3478501153.

The spelling of 28750441 in words is "twenty-eight million, seven hundred fifty thousand, four hundred forty-one".