86190394 has 8 divisors (see below), whose sum is σ = 129329460. Its totient is φ = 43080576.

The previous prime is 86190389. The next prime is 86190397. The reversal of 86190394 is 49309168.

It can be written as a sum of positive squares in 2 ways, for example, as 84879369 + 1311025 = 9213^2 + 1145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86190397) 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, 2922 + ... + 13450.

Almost surely, 2^86190394 is an apocalyptic number.

86190394 is a deficient number, since it is larger than the sum of its proper divisors (43139066).

86190394 is a wasteful number, since it uses less digits than its factorization.

86190394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14624.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 86190394 is about 9283.8781767104. The cubic root of 86190394 is about 441.7259926162.

The spelling of 86190394 in words is "eighty-six million, one hundred ninety thousand, three hundred ninety-four".