83506036237 has 4 divisors (see below), whose sum is σ = 89929577500. Its totient is φ = 77082494976.

The previous prime is 83506036219. The next prime is 83506036283. The reversal of 83506036237 is 73263060538.

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 13637801961 + 69868234276 = 116781^2 + 264326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83506036237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83506036193 and 83506036202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83506036837) 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, 3211770612 + ... + 3211770637.

It is an arithmetic number, because the mean of its divisors is an integer number (22482394375).

Almost surely, 2^83506036237 is an apocalyptic number.

It is an amenable number.

83506036237 is a deficient number, since it is larger than the sum of its proper divisors (6423541263).

83506036237 is a wasteful number, since it uses less digits than its factorization.

83506036237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423541262.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 83506036237 in words is "eighty-three billion, five hundred six million, thirty-six thousand, two hundred thirty-seven".