83949259 has 2 divisors, whose sum is σ = 83949260. Its totient is φ = 83949258.

The previous prime is 83949253. The next prime is 83949301. The reversal of 83949259 is 95294938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83949259 - 2⁵ = 83949227 is a prime.

It is not a weakly prime, because it can be changed into another prime (83949253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41974629 + 41974630.

It is an arithmetic number, because the mean of its divisors is an integer number (41974630).

Almost surely, 2^83949259 is an apocalyptic number.

83949259 is a deficient number, since it is larger than the sum of its proper divisors (1).

83949259 is an equidigital number, since it uses as much as digits as its factorization.

83949259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The square root of 83949259 is about 9162.3828232616. The cubic root of 83949259 is about 437.8637132187.

The spelling of 83949259 in words is "eighty-three million, nine hundred forty-nine thousand, two hundred fifty-nine".