83380357 has 4 divisors (see below), whose sum is σ = 83495776. Its totient is φ = 83264940.

The previous prime is 83380301. The next prime is 83380373. The reversal of 83380357 is 75308338.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83380357 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 (83380387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56619 + ... + 58072.

It is an arithmetic number, because the mean of its divisors is an integer number (20873944).

Almost surely, 2^83380357 is an apocalyptic number.

It is an amenable number.

83380357 is a deficient number, since it is larger than the sum of its proper divisors (115419).

83380357 is a wasteful number, since it uses less digits than its factorization.

83380357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115418.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 83380357 is about 9131.2845208109. The cubic root of 83380357 is about 436.8723748327.

The spelling of 83380357 in words is "eighty-three million, three hundred eighty thousand, three hundred fifty-seven".