84856438 has 8 divisors (see below), whose sum is σ = 129184632. Its totient is φ = 41794896.

The previous prime is 84856417. The next prime is 84856439. The reversal of 84856438 is 83465848.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84856439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316495 + ... + 316762.

It is an arithmetic number, because the mean of its divisors is an integer number (16148079).

Almost surely, 2^84856438 is an apocalyptic number.

84856438 is a deficient number, since it is larger than the sum of its proper divisors (44328194).

84856438 is a wasteful number, since it uses less digits than its factorization.

84856438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633326.

The product of its digits is 737280, while the sum is 46.

The square root of 84856438 is about 9211.7554244563. The cubic root of 84856438 is about 439.4352913871.

The spelling of 84856438 in words is "eighty-four million, eight hundred fifty-six thousand, four hundred thirty-eight".