28532701 has 2 divisors, whose sum is σ = 28532702. Its totient is φ = 28532700.

The previous prime is 28532683. The next prime is 28532711. The reversal of 28532701 is 10723582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24492601 + 4040100 = 4949^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 28532701 - 2²³ = 20144093 is a prime.

It is equal to p_1772533 and since 28532701 and 1772533 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28532701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28532711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14266350 + 14266351.

It is an arithmetic number, because the mean of its divisors is an integer number (14266351).

Almost surely, 2^28532701 is an apocalyptic number.

It is an amenable number.

28532701 is a deficient number, since it is larger than the sum of its proper divisors (1).

28532701 is an equidigital number, since it uses as much as digits as its factorization.

28532701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 28532701 is about 5341.6009772352. The cubic root of 28532701 is about 305.5725195553.

The spelling of 28532701 in words is "twenty-eight million, five hundred thirty-two thousand, seven hundred one".