28633683 has 8 divisors (see below), whose sum is σ = 41115088. Its totient is φ = 17620704.

The previous prime is 28633679. The next prime is 28633687. The reversal of 28633683 is 38633682.

It is an interprime number because it is at equal distance from previous prime (28633679) and next prime (28633687).

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

It is not a de Polignac number, because 28633683 - 2² = 28633679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 734197 = 28633683 / (2 + 8 + 6 + 3 + 3 + 6 + 8 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28633687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367060 + ... + 367137.

It is an arithmetic number, because the mean of its divisors is an integer number (5139386).

Almost surely, 2^28633683 is an apocalyptic number.

28633683 is a deficient number, since it is larger than the sum of its proper divisors (12481405).

28633683 is a wasteful number, since it uses less digits than its factorization.

28633683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734213.

The product of its digits is 124416, while the sum is 39.

The square root of 28633683 is about 5351.0450381211. The cubic root of 28633683 is about 305.9325858584.

Subtracting 28633683 from its reverse (38633682), we obtain a palindrome (9999999).

The spelling of 28633683 in words is "twenty-eight million, six hundred thirty-three thousand, six hundred eighty-three".