86694238 has 4 divisors (see below), whose sum is σ = 130041360. Its totient is φ = 43347118.

The previous prime is 86694233. The next prime is 86694241. The reversal of 86694238 is 83249668.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86694233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21673558 + ... + 21673561.

It is an arithmetic number, because the mean of its divisors is an integer number (32510340).

Almost surely, 2^86694238 is an apocalyptic number.

86694238 is a deficient number, since it is larger than the sum of its proper divisors (43347122).

86694238 is a wasteful number, since it uses less digits than its factorization.

86694238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43347121.

The product of its digits is 497664, while the sum is 46.

The square root of 86694238 is about 9310.9740629002. The cubic root of 86694238 is about 442.5850547771.

The spelling of 86694238 in words is "eighty-six million, six hundred ninety-four thousand, two hundred thirty-eight".