28333037 has 2 divisors, whose sum is σ = 28333038. Its totient is φ = 28333036.

The previous prime is 28333031. The next prime is 28333049. The reversal of 28333037 is 73033382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20967241 + 7365796 = 4579^2 + 2714^2 .

It is a cyclic number.

It is not a de Polignac number, because 28333037 - 2⁶ = 28332973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28333031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166518 + 14166519.

It is an arithmetic number, because the mean of its divisors is an integer number (14166519).

Almost surely, 2^28333037 is an apocalyptic number.

It is an amenable number.

28333037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28333037 is an equidigital number, since it uses as much as digits as its factorization.

28333037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 28333037 is about 5322.8786384812. The cubic root of 28333037 is about 304.8580796327.

The spelling of 28333037 in words is "twenty-eight million, three hundred thirty-three thousand, thirty-seven".