83783131 has 4 divisors (see below), whose sum is σ = 85826664. Its totient is φ = 81739600.

The previous prime is 83783129. The next prime is 83783137. The reversal of 83783131 is 13138738.

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 83783131 - 2¹ = 83783129 is a prime.

It is a super-2 number, since 2×83783131² = 14039226080326322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83783137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021705 + ... + 1021786.

It is an arithmetic number, because the mean of its divisors is an integer number (21456666).

Almost surely, 2^83783131 is an apocalyptic number.

83783131 is a deficient number, since it is larger than the sum of its proper divisors (2043533).

83783131 is a wasteful number, since it uses less digits than its factorization.

83783131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043532.

The product of its digits is 12096, while the sum is 34.

The square root of 83783131 is about 9153.3125697749. The cubic root of 83783131 is about 437.5746915742.

The spelling of 83783131 in words is "eighty-three million, seven hundred eighty-three thousand, one hundred thirty-one".