82003697 has 4 divisors (see below), whose sum is σ = 82060260. Its totient is φ = 81947136.

The previous prime is 82003693. The next prime is 82003723. The reversal of 82003697 is 79630028.

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 50822641 + 31181056 = 7129^2 + 5584^2 .

It is a cyclic number.

It is not a de Polignac number, because 82003697 - 2² = 82003693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82003693) 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, 26048 + ... + 29025.

It is an arithmetic number, because the mean of its divisors is an integer number (20515065).

Almost surely, 2^82003697 is an apocalyptic number.

It is an amenable number.

82003697 is a deficient number, since it is larger than the sum of its proper divisors (56563).

82003697 is a wasteful number, since it uses less digits than its factorization.

82003697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56562.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 82003697 is about 9055.5892685126. The cubic root of 82003697 is about 434.4546775633.

The spelling of 82003697 in words is "eighty-two million, three thousand, six hundred ninety-seven".