83864017 has 4 divisors (see below), whose sum is σ = 83882916. Its totient is φ = 83845120.

The previous prime is 83863979. The next prime is 83864023. The reversal of 83864017 is 71046838.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24512401 + 59351616 = 4951^2 + 7704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83864017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83864087) 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 in 3 ways as a sum of consecutive naturals, for example, 1233 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (20970729).

Almost surely, 2^83864017 is an apocalyptic number.

It is an amenable number.

83864017 is a deficient number, since it is larger than the sum of its proper divisors (18899).

83864017 is a wasteful number, since it uses less digits than its factorization.

83864017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18898.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 83864017 is about 9157.7299042940. The cubic root of 83864017 is about 437.7154608924.

It can be divided in two parts, 8386 and 4017, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 83864017 in words is "eighty-three million, eight hundred sixty-four thousand, seventeen".