28497635933 has 8 divisors (see below), whose sum is σ = 30733551576. Its totient is φ = 26267976000.

The previous prime is 28497635897. The next prime is 28497635939. The reversal of 28497635933 is 33953679482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10857014809 + 17640621124 = 104197^2 + 132818^2 .

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 28497635933 - 2¹² = 28497631837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28497635939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554458 + ... + 1572683.

It is an arithmetic number, because the mean of its divisors is an integer number (3841693947).

Almost surely, 2^28497635933 is an apocalyptic number.

It is an amenable number.

28497635933 is a deficient number, since it is larger than the sum of its proper divisors (2235915643).

28497635933 is a wasteful number, since it uses less digits than its factorization.

28497635933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127855.

The product of its digits is 29393280, while the sum is 59.

The spelling of 28497635933 in words is "twenty-eight billion, four hundred ninety-seven million, six hundred thirty-five thousand, nine hundred thirty-three".