86784442 has 8 divisors (see below), whose sum is σ = 130233600. Its totient is φ = 43373244.

The previous prime is 86784437. The next prime is 86784461. The reversal of 86784442 is 24448768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842 + ... + 13477.

It is an arithmetic number, because the mean of its divisors is an integer number (16279200).

Almost surely, 2^86784442 is an apocalyptic number.

86784442 is a deficient number, since it is larger than the sum of its proper divisors (43449158).

86784442 is a wasteful number, since it uses less digits than its factorization.

86784442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18980.

The product of its digits is 344064, while the sum is 43.

The square root of 86784442 is about 9315.8167650507. The cubic root of 86784442 is about 442.7385025140.

The spelling of 86784442 in words is "eighty-six million, seven hundred eighty-four thousand, four hundred forty-two".