86289394 has 4 divisors (see below), whose sum is σ = 129434094. Its totient is φ = 43144696.

The previous prime is 86289391. The next prime is 86289443. The reversal of 86289394 is 49398268.

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., 60918025 + 25371369 = 7805^2 + 5037^2 .

It is not an unprimeable number, because it can be changed into a prime (86289391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572347 + ... + 21572350.

Almost surely, 2^86289394 is an apocalyptic number.

86289394 is a deficient number, since it is larger than the sum of its proper divisors (43144700).

86289394 is a wasteful number, since it uses less digits than its factorization.

86289394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43144699.

The product of its digits is 746496, while the sum is 49.

The square root of 86289394 is about 9289.2084700474. The cubic root of 86289394 is about 441.8950529896.

The spelling of 86289394 in words is "eighty-six million, two hundred eighty-nine thousand, three hundred ninety-four".