86169138 has 16 divisors (see below), whose sum is σ = 188005536. Its totient is φ = 26111840.

The previous prime is 86169103. The next prime is 86169143. The reversal of 86169138 is 83196168.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86169138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652731 + ... + 652862.

It is an arithmetic number, because the mean of its divisors is an integer number (11750346).

Almost surely, 2^86169138 is an apocalyptic number.

86169138 is an abundant number, since it is smaller than the sum of its proper divisors (101836398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86169138 is a wasteful number, since it uses less digits than its factorization.

86169138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305609.

The product of its digits is 62208, while the sum is 42.

The square root of 86169138 is about 9282.7333259121. The cubic root of 86169138 is about 441.6896772790.

The spelling of 86169138 in words is "eighty-six million, one hundred sixty-nine thousand, one hundred thirty-eight".