86945193 has 6 divisors (see below), whose sum is σ = 125587514. Its totient is φ = 57963456.

The previous prime is 86945189. The next prime is 86945203. The reversal of 86945193 is 39154968.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52229529 + 34715664 = 7227^2 + 5892^2 .

It is not a de Polignac number, because 86945193 - 2² = 86945189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86943193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4830280 + ... + 4830297.

Almost surely, 2^86945193 is an apocalyptic number.

It is an amenable number.

86945193 is a deficient number, since it is larger than the sum of its proper divisors (38642321).

86945193 is a wasteful number, since it uses less digits than its factorization.

86945193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660583 (or 9660580 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 86945193 is about 9324.4406266542. The cubic root of 86945193 is about 443.0116957168.

The spelling of 86945193 in words is "eighty-six million, nine hundred forty-five thousand, one hundred ninety-three".