86908238 has 4 divisors (see below), whose sum is σ = 130362360. Its totient is φ = 43454118.

The previous prime is 86908231. The next prime is 86908243. The reversal of 86908238 is 83280968.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86908231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21727058 + ... + 21727061.

It is an arithmetic number, because the mean of its divisors is an integer number (32590590).

Almost surely, 2^86908238 is an apocalyptic number.

86908238 is a deficient number, since it is larger than the sum of its proper divisors (43454122).

86908238 is a wasteful number, since it uses less digits than its factorization.

86908238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43454121.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 86908238 is about 9322.4587958328. The cubic root of 86908238 is about 442.9489212390.

The spelling of 86908238 in words is "eighty-six million, nine hundred eight thousand, two hundred thirty-eight".