28821514 has 8 divisors (see below), whose sum is σ = 43289568. Its totient is φ = 14391660.

The previous prime is 28821503. The next prime is 28821539. The reversal of 28821514 is 41512882.

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

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, 7582 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (5411196).

Almost surely, 2^28821514 is an apocalyptic number.

28821514 is a deficient number, since it is larger than the sum of its proper divisors (14468054).

28821514 is a wasteful number, since it uses less digits than its factorization.

28821514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19100.

The product of its digits is 5120, while the sum is 31.

The square root of 28821514 is about 5368.5672204043. The cubic root of 28821514 is about 306.6000797984.

The spelling of 28821514 in words is "twenty-eight million, eight hundred twenty-one thousand, five hundred fourteen".