28202828 has 6 divisors (see below), whose sum is σ = 49354956. Its totient is φ = 14101412.

The previous prime is 28202827. The next prime is 28202831. The reversal of 28202828 is 82820282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28202794 and 28202803.

It is not an unprimeable number, because it can be changed into a prime (28202827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525350 + ... + 3525357.

It is an arithmetic number, because the mean of its divisors is an integer number (8225826).

Almost surely, 2^28202828 is an apocalyptic number.

It is an amenable number.

28202828 is a deficient number, since it is larger than the sum of its proper divisors (21152128).

28202828 is a wasteful number, since it uses less digits than its factorization.

28202828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050711 (or 7050709 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 28202828 is about 5310.6334838699. The cubic root of 28202828 is about 304.3903543871.

The spelling of 28202828 in words is "twenty-eight million, two hundred two thousand, eight hundred twenty-eight".