28882712 has 8 divisors (see below), whose sum is σ = 54155100. Its totient is φ = 14441352.

The previous prime is 28882703. The next prime is 28882739. The reversal of 28882712 is 21728882.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28882712² = 1668422104949888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1805162 + ... + 1805177.

Almost surely, 2^28882712 is an apocalyptic number.

It is an amenable number.

28882712 is a deficient number, since it is larger than the sum of its proper divisors (25272388).

28882712 is a wasteful number, since it uses less digits than its factorization.

28882712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610345 (or 3610341 counting only the distinct ones).

The product of its digits is 28672, while the sum is 38.

The square root of 28882712 is about 5374.2638565668. The cubic root of 28882712 is about 306.8169322395.

The spelling of 28882712 in words is "twenty-eight million, eight hundred eighty-two thousand, seven hundred twelve".