28833337 has 8 divisors (see below), whose sum is σ = 32122440. Its totient is φ = 25697280.

The previous prime is 28833331. The next prime is 28833353. The reversal of 28833337 is 73333882.

It can be written as a sum of positive squares in 4 ways, for example, as 732736 + 28100601 = 856^2 + 5301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28833337 - 2¹¹ = 28831289 is a prime.

It is a super-2 number, since 2×28833337² = 1662722645111138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28833296 and 28833305.

It is not an unprimeable number, because it can be changed into a prime (28833331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37864 + ... + 38617.

It is an arithmetic number, because the mean of its divisors is an integer number (4015305).

Almost surely, 2^28833337 is an apocalyptic number.

It is an amenable number.

28833337 is a deficient number, since it is larger than the sum of its proper divisors (3289103).

28833337 is a wasteful number, since it uses less digits than its factorization.

28833337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76523.

The product of its digits is 72576, while the sum is 37.

The square root of 28833337 is about 5369.6682392863. The cubic root of 28833337 is about 306.6419979894.

The spelling of 28833337 in words is "twenty-eight million, eight hundred thirty-three thousand, three hundred thirty-seven".