83378836 has 6 divisors (see below), whose sum is σ = 145912970. Its totient is φ = 41689416.

The previous prime is 83378807. The next prime is 83378837. The reversal of 83378836 is 63887338.

It can be written as a sum of positive squares in only one way, i.e., 54110736 + 29268100 = 7356^2 + 5410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83378837) by changing a digit.

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, 10422351 + ... + 10422358.

Almost surely, 2^83378836 is an apocalyptic number.

It is an amenable number.

83378836 is a deficient number, since it is larger than the sum of its proper divisors (62534134).

83378836 is a wasteful number, since it uses less digits than its factorization.

83378836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20844713 (or 20844711 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 83378836 is about 9131.2012353250. The cubic root of 83378836 is about 436.8697183840.

The spelling of 83378836 in words is "eighty-three million, three hundred seventy-eight thousand, eight hundred thirty-six".