28733476 has 12 divisors (see below), whose sum is σ = 50485680. Its totient is φ = 14309000.

The previous prime is 28733443. The next prime is 28733479. The reversal of 28733476 is 67433782.

It is a happy number.

It is a super-2 number, since 2×28733476² = 1651225286085152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28733479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13306 + ... + 15313.

It is an arithmetic number, because the mean of its divisors is an integer number (4207140).

Almost surely, 2^28733476 is an apocalyptic number.

It is an amenable number.

28733476 is a deficient number, since it is larger than the sum of its proper divisors (21752204).

28733476 is a wasteful number, since it uses less digits than its factorization.

28733476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28874 (or 28872 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 28733476 is about 5360.3615549700. The cubic root of 28733476 is about 306.2875818935.

The spelling of 28733476 in words is "twenty-eight million, seven hundred thirty-three thousand, four hundred seventy-six".