28789037 has 2 divisors, whose sum is σ = 28789038. Its totient is φ = 28789036.

The previous prime is 28789027. The next prime is 28789063. The reversal of 28789037 is 73098782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27678121 + 1110916 = 5261^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 28789037 - 2²⁴ = 12011821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28789027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14394518 + 14394519.

It is an arithmetic number, because the mean of its divisors is an integer number (14394519).

Almost surely, 2^28789037 is an apocalyptic number.

It is an amenable number.

28789037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28789037 is an equidigital number, since it uses as much as digits as its factorization.

28789037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 28789037 is about 5365.5416315597. The cubic root of 28789037 is about 306.4848742699.

The spelling of 28789037 in words is "twenty-eight million, seven hundred eighty-nine thousand, thirty-seven".