28715334 has 32 divisors (see below), whose sum is σ = 59409504. Its totient is φ = 9246720.

The previous prime is 28715321. The next prime is 28715341. The reversal of 28715334 is 43351782.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28715295 and 28715304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27282 + ... + 28314.

It is an arithmetic number, because the mean of its divisors is an integer number (1856547).

Almost surely, 2^28715334 is an apocalyptic number.

28715334 is an abundant number, since it is smaller than the sum of its proper divisors (30694170).

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

28715334 is a wasteful number, since it uses less digits than its factorization.

28715334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its digits is 20160, while the sum is 33.

The square root of 28715334 is about 5358.6690511731. The cubic root of 28715334 is about 306.2231061209.

The spelling of 28715334 in words is "twenty-eight million, seven hundred fifteen thousand, three hundred thirty-four".