28483999 has 4 divisors (see below), whose sum is σ = 28498336. Its totient is φ = 28469664.

The previous prime is 28483991. The next prime is 28484041. The reversal of 28483999 is 99938482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28483999 - 2³ = 28483991 is a prime.

It is a super-2 number, since 2×28483999² = 1622676398064002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28483991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3594 + ... + 8359.

It is an arithmetic number, because the mean of its divisors is an integer number (7124584).

Almost surely, 2^28483999 is an apocalyptic number.

28483999 is a deficient number, since it is larger than the sum of its proper divisors (14337).

28483999 is a wasteful number, since it uses less digits than its factorization.

28483999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14336.

The product of its digits is 1119744, while the sum is 52.

The square root of 28483999 is about 5337.0402846522. The cubic root of 28483999 is about 305.3985616328.

The spelling of 28483999 in words is "twenty-eight million, four hundred eighty-three thousand, nine hundred ninety-nine".