86406394 has 4 divisors (see below), whose sum is σ = 129609594. Its totient is φ = 43203196.

The previous prime is 86406379. The next prime is 86406401. The reversal of 86406394 is 49360468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71622369 + 14784025 = 8463^2 + 3845^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21601597 + ... + 21601600.

Almost surely, 2^86406394 is an apocalyptic number.

86406394 is a deficient number, since it is larger than the sum of its proper divisors (43203200).

86406394 is a wasteful number, since it uses less digits than its factorization.

86406394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43203199.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 86406394 is about 9295.5039669724. The cubic root of 86406394 is about 442.0946849833.

The spelling of 86406394 in words is "eighty-six million, four hundred six thousand, three hundred ninety-four".