83606797 has 4 divisors (see below), whose sum is σ = 86489820. Its totient is φ = 80723776.

The previous prime is 83606759. The next prime is 83606819. The reversal of 83606797 is 79760638.

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 26770276 + 56836521 = 5174^2 + 7539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83606797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83606197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441468 + ... + 1441525.

It is an arithmetic number, because the mean of its divisors is an integer number (21622455).

Almost surely, 2^83606797 is an apocalyptic number.

83606797 is the 4888-th centered heptagonal number.

It is an amenable number.

83606797 is a deficient number, since it is larger than the sum of its proper divisors (2883023).

83606797 is a wasteful number, since it uses less digits than its factorization.

83606797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883022.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 83606797 is about 9143.6752457641. The cubic root of 83606797 is about 437.2674957255.

The spelling of 83606797 in words is "eighty-three million, six hundred six thousand, seven hundred ninety-seven".