83207636 has 6 divisors (see below), whose sum is σ = 145613370. Its totient is φ = 41603816.

The previous prime is 83207617. The next prime is 83207647. The reversal of 83207636 is 63670238.

It can be written as a sum of positive squares in only one way, i.e., 59197636 + 24010000 = 7694^2 + 4900^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83207596 and 83207605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10400951 + ... + 10400958.

It is an arithmetic number, because the mean of its divisors is an integer number (24268895).

Almost surely, 2^83207636 is an apocalyptic number.

It is an amenable number.

83207636 is a deficient number, since it is larger than the sum of its proper divisors (62405734).

83207636 is a wasteful number, since it uses less digits than its factorization.

83207636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20801913 (or 20801911 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 83207636 is about 9121.8219671292. The cubic root of 83207636 is about 436.5705083865.

The spelling of 83207636 in words is "eighty-three million, two hundred seven thousand, six hundred thirty-six".