28732167 has 6 divisors (see below), whose sum is σ = 41502032. Its totient is φ = 19154772.

The previous prime is 28732163. The next prime is 28732169. The reversal of 28732167 is 76123782.

It is not a de Polignac number, because 28732167 - 2² = 28732163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1596223 + ... + 1596240.

Almost surely, 2^28732167 is an apocalyptic number.

28732167 is a deficient number, since it is larger than the sum of its proper divisors (12769865).

28732167 is a wasteful number, since it uses less digits than its factorization.

28732167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192469 (or 3192466 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 28732167 is about 5360.2394536065. The cubic root of 28732167 is about 306.2829306807.

The spelling of 28732167 in words is "twenty-eight million, seven hundred thirty-two thousand, one hundred sixty-seven".