83368405 has 4 divisors (see below), whose sum is σ = 100042092. Its totient is φ = 66694720.

The previous prime is 83368403. The next prime is 83368427. The reversal of 83368405 is 50486338.

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 47858724 + 35509681 = 6918^2 + 5959^2 .

It is not a de Polignac number, because 83368405 - 2¹ = 83368403 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 (83368403) 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, 8336836 + ... + 8336845.

It is an arithmetic number, because the mean of its divisors is an integer number (25010523).

Almost surely, 2^83368405 is an apocalyptic number.

It is an amenable number.

83368405 is a deficient number, since it is larger than the sum of its proper divisors (16673687).

83368405 is a wasteful number, since it uses less digits than its factorization.

83368405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16673686.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 83368405 is about 9130.6300439783. The cubic root of 83368405 is about 436.8514996197.

The spelling of 83368405 in words is "eighty-three million, three hundred sixty-eight thousand, four hundred five".