84239636 has 24 divisors (see below), whose sum is σ = 161135520. Its totient is φ = 38297952.

The previous prime is 84239633. The next prime is 84239663. The reversal of 84239636 is 63693248.

It is a junction number, because it is equal to n+sod(n) for n = 84239593 and 84239602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84239633) 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, 8606 + ... + 15573.

It is an arithmetic number, because the mean of its divisors is an integer number (6713980).

Almost surely, 2^84239636 is an apocalyptic number.

It is an amenable number.

84239636 is a deficient number, since it is larger than the sum of its proper divisors (76895884).

84239636 is a wasteful number, since it uses less digits than its factorization.

84239636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24263 (or 24261 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 84239636 is about 9178.2152949253. The cubic root of 84239636 is about 438.3679830477.

The spelling of 84239636 in words is "eighty-four million, two hundred thirty-nine thousand, six hundred thirty-six".