28880671 has 8 divisors (see below), whose sum is σ = 30736800. Its totient is φ = 27042048.

The previous prime is 28880669. The next prime is 28880693. The reversal of 28880671 is 17608882.

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 28880671 - 2¹ = 28880669 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 (28880611) 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, 886 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (3842100).

Almost surely, 2^28880671 is an apocalyptic number.

28880671 is a deficient number, since it is larger than the sum of its proper divisors (1856129).

28880671 is a wasteful number, since it uses less digits than its factorization.

28880671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8753.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 28880671 is about 5374.0739667407. The cubic root of 28880671 is about 306.8097049852.

The spelling of 28880671 in words is "twenty-eight million, eight hundred eighty thousand, six hundred seventy-one".