28479850 has 24 divisors (see below), whose sum is σ = 60540768. Its totient is φ = 9764400.

The previous prime is 28479817. The next prime is 28479851. The reversal of 28479850 is 5897482.

28479850 = 995² + 996² + ... + 1022².

It is a super-2 number, since 2×28479850² = 1622203712045000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28479797 and 28479806.

It is not an unprimeable number, because it can be changed into a prime (28479851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40336 + ... + 41035.

It is an arithmetic number, because the mean of its divisors is an integer number (2522532).

Almost surely, 2^28479850 is an apocalyptic number.

28479850 is an abundant number, since it is smaller than the sum of its proper divisors (32060918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28479850 is a wasteful number, since it uses less digits than its factorization.

28479850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81390 (or 81385 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 28479850 is about 5336.6515719129. The cubic root of 28479850 is about 305.3837327206.

The spelling of 28479850 in words is "twenty-eight million, four hundred seventy-nine thousand, eight hundred fifty".