83904071903 has 4 divisors (see below), whose sum is σ = 86171749560. Its totient is φ = 81636394248.

The previous prime is 83904071899. The next prime is 83904071957. The reversal of 83904071903 is 30917040938.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 83904071903 - 2² = 83904071899 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 (83904071983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133838773 + ... + 1133838846.

It is an arithmetic number, because the mean of its divisors is an integer number (21542937390).

Almost surely, 2^83904071903 is an apocalyptic number.

83904071903 is a deficient number, since it is larger than the sum of its proper divisors (2267677657).

83904071903 is a wasteful number, since it uses less digits than its factorization.

83904071903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267677656.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 83904071903 in words is "eighty-three billion, nine hundred four million, seventy-one thousand, nine hundred three".