28858671 has 6 divisors (see below), whose sum is σ = 41684760. Its totient is φ = 19239108.

The previous prime is 28858651. The next prime is 28858699. The reversal of 28858671 is 17685882.

It is not a de Polignac number, because 28858671 - 2⁶ = 28858607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858651) 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, 1603251 + ... + 1603268.

It is an arithmetic number, because the mean of its divisors is an integer number (6947460).

Almost surely, 2^28858671 is an apocalyptic number.

28858671 is a deficient number, since it is larger than the sum of its proper divisors (12826089).

28858671 is a wasteful number, since it uses less digits than its factorization.

28858671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206525 (or 3206522 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 28858671 is about 5372.0267125174. The cubic root of 28858671 is about 306.7317805707.

The spelling of 28858671 in words is "twenty-eight million, eight hundred fifty-eight thousand, six hundred seventy-one".