83949717 has 16 divisors (see below), whose sum is σ = 115734080. Its totient is φ = 54093312.

The previous prime is 83949703. The next prime is 83949763. The reversal of 83949717 is 71794938.

It is not a de Polignac number, because 83949717 - 2¹⁰ = 83948693 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83949787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9159 + ... + 15867.

It is an arithmetic number, because the mean of its divisors is an integer number (7233380).

Almost surely, 2^83949717 is an apocalyptic number.

It is an amenable number.

83949717 is a deficient number, since it is larger than the sum of its proper divisors (31784363).

83949717 is a wasteful number, since it uses less digits than its factorization.

83949717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852.

The product of its digits is 381024, while the sum is 48.

The square root of 83949717 is about 9162.4078167259. The cubic root of 83949717 is about 437.8645094982.

It can be divided in two parts, 83949 and 717, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 83949717 in words is "eighty-three million, nine hundred forty-nine thousand, seven hundred seventeen".