83394509 has 8 divisors (see below), whose sum is σ = 91359360. Its totient is φ = 75493600.

The previous prime is 83394491. The next prime is 83394523. The reversal of 83394509 is 90549338.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83394509 - 2¹² = 83390413 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 (83394529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13232 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (11419920).

Almost surely, 2^83394509 is an apocalyptic number.

It is an amenable number.

83394509 is a deficient number, since it is larger than the sum of its proper divisors (7964851).

83394509 is a wasteful number, since it uses less digits than its factorization.

83394509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31971.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 83394509 is about 9132.0594062895. The cubic root of 83394509 is about 436.8970899587.

The spelling of 83394509 in words is "eighty-three million, three hundred ninety-four thousand, five hundred nine".