83684662097 has 4 divisors (see below), whose sum is σ = 83716160676. Its totient is φ = 83653163520.

The previous prime is 83684662093. The next prime is 83684662109. The reversal of 83684662097 is 79026648638.

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 55756904641 + 27927757456 = 236129^2 + 167116^2 .

It is a cyclic number.

It is not a de Polignac number, because 83684662097 - 2² = 83684662093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83684662093) 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, 15745304 + ... + 15750617.

It is an arithmetic number, because the mean of its divisors is an integer number (20929040169).

Almost surely, 2^83684662097 is an apocalyptic number.

It is an amenable number.

83684662097 is a deficient number, since it is larger than the sum of its proper divisors (31498579).

83684662097 is a wasteful number, since it uses less digits than its factorization.

83684662097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31498578.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 83684662097 in words is "eighty-three billion, six hundred eighty-four million, six hundred sixty-two thousand, ninety-seven".