83905156 has 12 divisors (see below), whose sum is σ = 147206668. Its totient is φ = 41846112.

The previous prime is 83905141. The next prime is 83905163. The reversal of 83905156 is 65150938.

It can be written as a sum of positive squares in 2 ways, for example, as 19360000 + 64545156 = 4400^2 + 8034^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24831 + ... + 28006.

Almost surely, 2^83905156 is an apocalyptic number.

It is an amenable number.

83905156 is a deficient number, since it is larger than the sum of its proper divisors (63301512).

83905156 is a wasteful number, since it uses less digits than its factorization.

83905156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53238 (or 53236 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 83905156 is about 9159.9757641601. The cubic root of 83905156 is about 437.7870221068.

The spelling of 83905156 in words is "eighty-three million, nine hundred five thousand, one hundred fifty-six".