28250671 has 8 divisors (see below), whose sum is σ = 28575360. Its totient is φ = 27928152.

The previous prime is 28250659. The next prime is 28250689. The reversal of 28250671 is 17605282.

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 28250671 - 2¹³ = 28242479 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 (28250071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42540 + ... + 43198.

It is an arithmetic number, because the mean of its divisors is an integer number (3571920).

Almost surely, 2^28250671 is an apocalyptic number.

28250671 is a deficient number, since it is larger than the sum of its proper divisors (324689).

28250671 is a wasteful number, since it uses less digits than its factorization.

28250671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 28250671 is about 5315.1360283628. The cubic root of 28250671 is about 304.5623787512.

The spelling of 28250671 in words is "twenty-eight million, two hundred fifty thousand, six hundred seventy-one".