86173245 has 12 divisors (see below), whose sum is σ = 149367036. Its totient is φ = 45959040.

The previous prime is 86173223. The next prime is 86173261. The reversal of 86173245 is 54237168.

86173245 is a `hidden beast` number, since 8 + 617 + 32 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60559524 + 25613721 = 7782^2 + 5061^2 .

It is not a de Polignac number, because 86173245 - 2⁷ = 86173117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 957436 + ... + 957525.

It is an arithmetic number, because the mean of its divisors is an integer number (12447253).

Almost surely, 2^86173245 is an apocalyptic number.

It is an amenable number.

86173245 is a deficient number, since it is larger than the sum of its proper divisors (63193791).

86173245 is a wasteful number, since it uses less digits than its factorization.

86173245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914972 (or 1914969 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 86173245 is about 9282.9545404467. The cubic root of 86173245 is about 441.6966944499.

The spelling of 86173245 in words is "eighty-six million, one hundred seventy-three thousand, two hundred forty-five".