86890394 has 8 divisors (see below), whose sum is σ = 131166228. Its totient is φ = 43168320.

The previous prime is 86890361. The next prime is 86890399. The reversal of 86890394 is 49309868.

It can be written as a sum of positive squares in 2 ways, for example, as 81993025 + 4897369 = 9055^2 + 2213^2 .

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 (86890399) 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, 138047 + ... + 138674.

Almost surely, 2^86890394 is an apocalyptic number.

86890394 is a deficient number, since it is larger than the sum of its proper divisors (44275834).

86890394 is a wasteful number, since it uses less digits than its factorization.

86890394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276880.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 86890394 is about 9321.5017030519. The cubic root of 86890394 is about 442.9186037389.

The spelling of 86890394 in words is "eighty-six million, eight hundred ninety thousand, three hundred ninety-four".