83198693 has 4 divisors (see below), whose sum is σ = 84562668. Its totient is φ = 81834720.

The previous prime is 83198683. The next prime is 83198729. The reversal of 83198693 is 39689138.

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 1151329 + 82047364 = 1073^2 + 9058^2 .

It is a cyclic number.

It is not a de Polignac number, because 83198693 - 2¹⁰ = 83197669 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 (83198683) 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, 681896 + ... + 682017.

It is an arithmetic number, because the mean of its divisors is an integer number (21140667).

Almost surely, 2^83198693 is an apocalyptic number.

It is an amenable number.

83198693 is a deficient number, since it is larger than the sum of its proper divisors (1363975).

83198693 is a wasteful number, since it uses less digits than its factorization.

83198693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363974.

The product of its digits is 279936, while the sum is 47.

The square root of 83198693 is about 9121.3317558348. The cubic root of 83198693 is about 436.5548672341.

The spelling of 83198693 in words is "eighty-three million, one hundred ninety-eight thousand, six hundred ninety-three".