28883870 has 8 divisors (see below), whose sum is σ = 51990984. Its totient is φ = 11553544.

The previous prime is 28883861. The next prime is 28883891. The reversal of 28883870 is 7838882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444184 + ... + 1444203.

It is an arithmetic number, because the mean of its divisors is an integer number (6498873).

Almost surely, 2^28883870 is an apocalyptic number.

28883870 is a deficient number, since it is larger than the sum of its proper divisors (23107114).

28883870 is a wasteful number, since it uses less digits than its factorization.

28883870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888394.

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 28883870 is about 5374.3715911723. The cubic root of 28883870 is about 306.8210326077.

The spelling of 28883870 in words is "twenty-eight million, eight hundred eighty-three thousand, eight hundred seventy".