86943673 has 4 divisors (see below), whose sum is σ = 89293540. Its totient is φ = 84593808.

The previous prime is 86943671. The next prime is 86943679. The reversal of 86943673 is 37634968.

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 63489024 + 23454649 = 7968^2 + 4843^2 .

It is a cyclic number.

It is not a de Polignac number, because 86943673 - 2¹ = 86943671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86943671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174878 + ... + 1174951.

It is an arithmetic number, because the mean of its divisors is an integer number (22323385).

Almost surely, 2^86943673 is an apocalyptic number.

It is an amenable number.

86943673 is a deficient number, since it is larger than the sum of its proper divisors (2349867).

86943673 is a wasteful number, since it uses less digits than its factorization.

86943673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349866.

The product of its digits is 653184, while the sum is 46.

The square root of 86943673 is about 9324.3591200683. The cubic root of 86943673 is about 443.0091140840.

It can be divided in two parts, 86943 and 673, that added together give a square (87616 = 296²).

The spelling of 86943673 in words is "eighty-six million, nine hundred forty-three thousand, six hundred seventy-three".