83997434 has 4 divisors (see below), whose sum is σ = 125996154. Its totient is φ = 41998716.

The previous prime is 83997379. The next prime is 83997439. The reversal of 83997434 is 43479938.

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., 55875625 + 28121809 = 7475^2 + 5303^2 .

It is not an unprimeable number, because it can be changed into a prime (83997439) 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, 20999357 + ... + 20999360.

Almost surely, 2^83997434 is an apocalyptic number.

83997434 is a deficient number, since it is larger than the sum of its proper divisors (41998720).

83997434 is a wasteful number, since it uses less digits than its factorization.

83997434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41998719.

The product of its digits is 653184, while the sum is 47.

The square root of 83997434 is about 9165.0114020660. The cubic root of 83997434 is about 437.9474544806.

The spelling of 83997434 in words is "eighty-three million, nine hundred ninety-seven thousand, four hundred thirty-four".