28313514 has 24 divisors (see below), whose sum is σ = 61719840. Its totient is φ = 9380328.

The previous prime is 28313503. The next prime is 28313531. The reversal of 28313514 is 41531382.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1704 + ... + 7715.

It is an arithmetic number, because the mean of its divisors is an integer number (2571660).

Almost surely, 2^28313514 is an apocalyptic number.

28313514 is an abundant number, since it is smaller than the sum of its proper divisors (33406326).

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

28313514 is a wasteful number, since it uses less digits than its factorization.

28313514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9594 (or 9591 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 28313514 is about 5321.0444463470. The cubic root of 28313514 is about 304.7880422903.

Adding to 28313514 its reverse (41531382), we get a palindrome (69844896).

The spelling of 28313514 in words is "twenty-eight million, three hundred thirteen thousand, five hundred fourteen".