28313862 has 32 divisors (see below), whose sum is σ = 58423680. Its totient is φ = 9142080.

The previous prime is 28313849. The next prime is 28313863. The reversal of 28313862 is 26831382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28313863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43713 + ... + 44355.

It is an arithmetic number, because the mean of its divisors is an integer number (1825740).

Almost surely, 2^28313862 is an apocalyptic number.

28313862 is an abundant number, since it is smaller than the sum of its proper divisors (30109818).

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

28313862 is a wasteful number, since it uses less digits than its factorization.

28313862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868.

The product of its digits is 13824, while the sum is 33.

The square root of 28313862 is about 5321.0771465935. The cubic root of 28313862 is about 304.7892909968.

The spelling of 28313862 in words is "twenty-eight million, three hundred thirteen thousand, eight hundred sixty-two".