28347046 has 24 divisors (see below), whose sum is σ = 52624944. Its totient is φ = 11213280.

The previous prime is 28347043. The next prime is 28347047. The reversal of 28347046 is 64074382.

It is a super-2 number, since 2×28347046² = 1607110033852232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28347043) 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 11 ways as a sum of consecutive naturals, for example, 3625 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (2192706).

Almost surely, 2^28347046 is an apocalyptic number.

28347046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28347046 is a deficient number, since it is larger than the sum of its proper divisors (24277898).

28347046 is a wasteful number, since it uses less digits than its factorization.

28347046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016 (or 12003 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 28347046 is about 5324.1943991556. The cubic root of 28347046 is about 304.9083160775.

The spelling of 28347046 in words is "twenty-eight million, three hundred forty-seven thousand, forty-six".