83091329 has 2 divisors, whose sum is σ = 83091330. Its totient is φ = 83091328.

The previous prime is 83091319. The next prime is 83091469. The reversal of 83091329 is 92319038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 1098304 = 9055^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 83091329 - 2¹⁶ = 83025793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83091319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41545664 + 41545665.

It is an arithmetic number, because the mean of its divisors is an integer number (41545665).

Almost surely, 2^83091329 is an apocalyptic number.

It is an amenable number.

83091329 is a deficient number, since it is larger than the sum of its proper divisors (1).

83091329 is an equidigital number, since it uses as much as digits as its factorization.

83091329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 83091329 is about 9115.4445311241. Note that the first 3 decimals coincide. The cubic root of 83091329 is about 436.3670018930.

The spelling of 83091329 in words is "eighty-three million, ninety-one thousand, three hundred twenty-nine".