86904242 has 8 divisors (see below), whose sum is σ = 134851500. Its totient is φ = 41953744.

The previous prime is 86904241. The next prime is 86904299. The reversal of 86904242 is 24240968.

It can be written as a sum of positive squares in 2 ways, for example, as 86508601 + 395641 = 9301^2 + 629^2 .

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 (86904241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749117 + ... + 749232.

Almost surely, 2^86904242 is an apocalyptic number.

86904242 is a deficient number, since it is larger than the sum of its proper divisors (47947258).

86904242 is a wasteful number, since it uses less digits than its factorization.

86904242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498380.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 86904242 is about 9322.2444722288. The cubic root of 86904242 is about 442.9421322738.

The spelling of 86904242 in words is "eighty-six million, nine hundred four thousand, two hundred forty-two".