28454486 has 4 divisors (see below), whose sum is σ = 42681732. Its totient is φ = 14227242.

The previous prime is 28454479. The next prime is 28454501. The reversal of 28454486 is 68445482.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7113620 + ... + 7113623.

It is an arithmetic number, because the mean of its divisors is an integer number (10670433).

Almost surely, 2^28454486 is an apocalyptic number.

28454486 is a deficient number, since it is larger than the sum of its proper divisors (14227246).

28454486 is a wasteful number, since it uses less digits than its factorization.

28454486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14227245.

The product of its digits is 245760, while the sum is 41.

The square root of 28454486 is about 5334.2746460976. The cubic root of 28454486 is about 305.2930480953.

The spelling of 28454486 in words is "twenty-eight million, four hundred fifty-four thousand, four hundred eighty-six".