28683356 has 36 divisors (see below), whose sum is σ = 54908784. Its totient is φ = 13104000.

The previous prime is 28683353. The next prime is 28683371. The reversal of 28683356 is 65338682.

It is a super-2 number, since 2×28683356² = 1645469822845472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28683353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101936 + ... + 102216.

It is an arithmetic number, because the mean of its divisors is an integer number (1525244).

Almost surely, 2^28683356 is an apocalyptic number.

28683356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28683356 is a deficient number, since it is larger than the sum of its proper divisors (26225428).

28683356 is a wasteful number, since it uses less digits than its factorization.

28683356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 447 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28683356 is about 5355.6844567245. The cubic root of 28683356 is about 306.1093917346.

The spelling of 28683356 in words is "twenty-eight million, six hundred eighty-three thousand, three hundred fifty-six".