86780242 has 8 divisors (see below), whose sum is σ = 135830016. Its totient is φ = 41503572.

The previous prime is 86780233. The next prime is 86780249. The reversal of 86780242 is 24208768.

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 (86780249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943218 + ... + 943309.

It is an arithmetic number, because the mean of its divisors is an integer number (16978752).

Almost surely, 2^86780242 is an apocalyptic number.

86780242 is a deficient number, since it is larger than the sum of its proper divisors (49049774).

86780242 is a wasteful number, since it uses less digits than its factorization.

86780242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886552.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 86780242 is about 9315.5913392549. The cubic root of 86780242 is about 442.7313601750.

The spelling of 86780242 in words is "eighty-six million, seven hundred eighty thousand, two hundred forty-two".