28167655 has 8 divisors (see below), whose sum is σ = 34045200. Its totient is φ = 22371456.

The previous prime is 28167649. The next prime is 28167661. The reversal of 28167655 is 55676182.

It is an interprime number because it is at equal distance from previous prime (28167649) and next prime (28167661).

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

It is a cyclic number.

It is not a de Polignac number, because 28167655 - 2³ = 28167647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19570 + ... + 20959.

It is an arithmetic number, because the mean of its divisors is an integer number (4255650).

Almost surely, 2^28167655 is an apocalyptic number.

28167655 is a deficient number, since it is larger than the sum of its proper divisors (5877545).

28167655 is a wasteful number, since it uses less digits than its factorization.

28167655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673.

The product of its digits is 100800, while the sum is 40.

The square root of 28167655 is about 5307.3208872274. The cubic root of 28167655 is about 304.2637621673.

The spelling of 28167655 in words is "twenty-eight million, one hundred sixty-seven thousand, six hundred fifty-five".