83345399 has 4 divisors (see below), whose sum is σ = 86969136. Its totient is φ = 79721664.

The previous prime is 83345393. The next prime is 83345417. The reversal of 83345399 is 99354338.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83345399 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 (83345393) 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, 1811834 + ... + 1811879.

It is an arithmetic number, because the mean of its divisors is an integer number (21742284).

Almost surely, 2^83345399 is an apocalyptic number.

83345399 is a deficient number, since it is larger than the sum of its proper divisors (3623737).

83345399 is a wasteful number, since it uses less digits than its factorization.

83345399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623736.

The product of its digits is 349920, while the sum is 44.

The square root of 83345399 is about 9129.3701316137. The cubic root of 83345399 is about 436.8113120122.

The spelling of 83345399 in words is "eighty-three million, three hundred forty-five thousand, three hundred ninety-nine".