28654886 has 8 divisors (see below), whose sum is σ = 46288704. Its totient is φ = 13225320.

The previous prime is 28654853. The next prime is 28654889. The reversal of 28654886 is 68845682.

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

It is a super-2 number, since 2×28654886² = 1642204983345992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28654886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28654889) 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, 551030 + ... + 551081.

It is an arithmetic number, because the mean of its divisors is an integer number (5786088).

Almost surely, 2^28654886 is an apocalyptic number.

28654886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28654886 is a deficient number, since it is larger than the sum of its proper divisors (17633818).

28654886 is a wasteful number, since it uses less digits than its factorization.

28654886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102126.

The product of its digits is 737280, while the sum is 47.

The square root of 28654886 is about 5353.0258732795. The cubic root of 28654886 is about 306.0080807241.

The spelling of 28654886 in words is "twenty-eight million, six hundred fifty-four thousand, eight hundred eighty-six".