28454686 has 8 divisors (see below), whose sum is σ = 45965304. Its totient is φ = 13132920.

The previous prime is 28454653. The next prime is 28454687. The reversal of 28454686 is 68645482.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454687) 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, 547180 + ... + 547231.

It is an arithmetic number, because the mean of its divisors is an integer number (5745663).

Almost surely, 2^28454686 is an apocalyptic number.

28454686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28454686 is a deficient number, since it is larger than the sum of its proper divisors (17510618).

28454686 is a wasteful number, since it uses less digits than its factorization.

28454686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094426.

The product of its digits is 368640, while the sum is 43.

The square root of 28454686 is about 5334.2933927560. The cubic root of 28454686 is about 305.2937633717.

The spelling of 28454686 in words is "twenty-eight million, four hundred fifty-four thousand, six hundred eighty-six".