28337377 has 4 divisors (see below), whose sum is σ = 28439956. Its totient is φ = 28234800.

The previous prime is 28337363. The next prime is 28337399. The reversal of 28337377 is 77373382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5527201 + 22810176 = 2351^2 + 4776^2 .

It is a cyclic number.

It is not a de Polignac number, because 28337377 - 2¹⁹ = 27813089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28397377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50874 + ... + 51427.

It is an arithmetic number, because the mean of its divisors is an integer number (7109989).

Almost surely, 2^28337377 is an apocalyptic number.

It is an amenable number.

28337377 is a deficient number, since it is larger than the sum of its proper divisors (102579).

28337377 is a wasteful number, since it uses less digits than its factorization.

28337377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102578.

The product of its digits is 148176, while the sum is 40.

The square root of 28337377 is about 5323.2862970162. The cubic root of 28337377 is about 304.8736446956.

The spelling of 28337377 in words is "twenty-eight million, three hundred thirty-seven thousand, three hundred seventy-seven".