83634436 has 6 divisors (see below), whose sum is σ = 146360270. Its totient is φ = 41817216.

The previous prime is 83634403. The next prime is 83634443. The reversal of 83634436 is 63443638.

It can be written as a sum of positive squares in only one way, i.e., 75794436 + 7840000 = 8706^2 + 2800^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83634395 and 83634404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10454301 + ... + 10454308.

Almost surely, 2^83634436 is an apocalyptic number.

It is an amenable number.

83634436 is a deficient number, since it is larger than the sum of its proper divisors (62725834).

83634436 is a wasteful number, since it uses less digits than its factorization.

83634436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908613 (or 20908611 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 83634436 is about 9145.1864934511. The cubic root of 83634436 is about 437.3156748418.

The spelling of 83634436 in words is "eighty-three million, six hundred thirty-four thousand, four hundred thirty-six".