28887601 has 2 divisors, whose sum is σ = 28887602. Its totient is φ = 28887600.

The previous prime is 28887583. The next prime is 28887611. The reversal of 28887601 is 10678882.

28887601 = 3800² + 3801².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14447601 + 14440000 = 3801^2 + 3800^2 .

It is a cyclic number.

It is not a de Polignac number, because 28887601 - 2²³ = 20498993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28887611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14443800 + 14443801.

It is an arithmetic number, because the mean of its divisors is an integer number (14443801).

Almost surely, 2^28887601 is an apocalyptic number.

28887601 is the 3801-st centered square number.

It is an amenable number.

28887601 is a deficient number, since it is larger than the sum of its proper divisors (1).

28887601 is an equidigital number, since it uses as much as digits as its factorization.

28887601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28887601 is about 5374.7186903130. The cubic root of 28887601 is about 306.8342429795.

The spelling of 28887601 in words is "twenty-eight million, eight hundred eighty-seven thousand, six hundred one".