83489636 has 6 divisors (see below), whose sum is σ = 146106870. Its totient is φ = 41744816.

The previous prime is 83489621. The next prime is 83489647. The reversal of 83489636 is 63698438.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 8667136 = 8650^2 + 2944^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10436201 + ... + 10436208.

It is an arithmetic number, because the mean of its divisors is an integer number (24351145).

Almost surely, 2^83489636 is an apocalyptic number.

It is an amenable number.

83489636 is a deficient number, since it is larger than the sum of its proper divisors (62617234).

83489636 is a wasteful number, since it uses less digits than its factorization.

83489636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20872413 (or 20872411 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 83489636 is about 9137.2663308016. The cubic root of 83489636 is about 437.0631477220.

The spelling of 83489636 in words is "eighty-three million, four hundred eighty-nine thousand, six hundred thirty-six".