86673445 has 4 divisors (see below), whose sum is σ = 104008140. Its totient is φ = 69338752.

The previous prime is 86673443. The next prime is 86673469. The reversal of 86673445 is 54437668.

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 62378404 + 24295041 = 7898^2 + 4929^2 .

It is a cyclic number.

It is not a de Polignac number, because 86673445 - 2¹ = 86673443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86673443) 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, 8667340 + ... + 8667349.

It is an arithmetic number, because the mean of its divisors is an integer number (26002035).

Almost surely, 2^86673445 is an apocalyptic number.

It is an amenable number.

86673445 is a deficient number, since it is larger than the sum of its proper divisors (17334695).

86673445 is a wasteful number, since it uses less digits than its factorization.

86673445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334694.

The product of its digits is 483840, while the sum is 43.

The square root of 86673445 is about 9309.8574102937. The cubic root of 86673445 is about 442.5496683159.

The spelling of 86673445 in words is "eighty-six million, six hundred seventy-three thousand, four hundred forty-five".