83630353 has 4 divisors (see below), whose sum is σ = 83658420. Its totient is φ = 83602288.

The previous prime is 83630311. The next prime is 83630401. The reversal of 83630353 is 35303638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77035729 + 6594624 = 8777^2 + 2568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83630353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83630303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8950 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (20914605).

Almost surely, 2^83630353 is an apocalyptic number.

It is an amenable number.

83630353 is a deficient number, since it is larger than the sum of its proper divisors (28067).

83630353 is a wasteful number, since it uses less digits than its factorization.

83630353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28066.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 83630353 is about 9144.9632585375. The cubic root of 83630353 is about 437.3085582001.

It can be divided in two parts, 83 and 630353, that added together give a square (630436 = 794²).

The spelling of 83630353 in words is "eighty-three million, six hundred thirty thousand, three hundred fifty-three".