83488891 has 2 divisors, whose sum is σ = 83488892. Its totient is φ = 83488890.

The previous prime is 83488879. The next prime is 83488897. The reversal of 83488891 is 19888438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83488891 - 2¹⁹ = 82964603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83488897) 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 as a sum of consecutive naturals, namely, 41744445 + 41744446.

It is an arithmetic number, because the mean of its divisors is an integer number (41744446).

Almost surely, 2^83488891 is an apocalyptic number.

83488891 is a deficient number, since it is larger than the sum of its proper divisors (1).

83488891 is an equidigital number, since it uses as much as digits as its factorization.

83488891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 49.

The square root of 83488891 is about 9137.2255635942. The cubic root of 83488891 is about 437.0618477083.

The spelling of 83488891 in words is "eighty-three million, four hundred eighty-eight thousand, eight hundred ninety-one".