82885869 has 32 divisors (see below), whose sum is σ = 134928000. Its totient is φ = 49870080.

The previous prime is 82885867. The next prime is 82885871. The reversal of 82885869 is 96858828.

It is an interprime number because it is at equal distance from previous prime (82885867) and next prime (82885871).

It is not a de Polignac number, because 82885869 - 2¹ = 82885867 is a prime.

It is a super-2 number, since 2×82885869² = 13740134559770322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82885861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43317 + ... + 45189.

It is an arithmetic number, because the mean of its divisors is an integer number (4216500).

Almost surely, 2^82885869 is an apocalyptic number.

It is an amenable number.

82885869 is a deficient number, since it is larger than the sum of its proper divisors (52042131).

82885869 is a wasteful number, since it uses less digits than its factorization.

82885869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2036 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 82885869 is about 9104.1676720060. The cubic root of 82885869 is about 436.0070366819.

The spelling of 82885869 in words is "eighty-two million, eight hundred eighty-five thousand, eight hundred sixty-nine".