83697842 has 4 divisors (see below), whose sum is σ = 125546766. Its totient is φ = 41848920.

The previous prime is 83697841. The next prime is 83697881. The reversal of 83697842 is 24879638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66896041 + 16801801 = 8179^2 + 4099^2 .

It is not an unprimeable number, because it can be changed into a prime (83697841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20924459 + ... + 20924462.

Almost surely, 2^83697842 is an apocalyptic number.

83697842 is a deficient number, since it is larger than the sum of its proper divisors (41848924).

83697842 is a wasteful number, since it uses less digits than its factorization.

83697842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41848923.

The product of its digits is 580608, while the sum is 47.

The square root of 83697842 is about 9148.6524690798. The cubic root of 83697842 is about 437.4261613618.

The spelling of 83697842 in words is "eighty-three million, six hundred ninety-seven thousand, eight hundred forty-two".