84507838 has 8 divisors (see below), whose sum is σ = 127729800. Its totient is φ = 41931240.

The previous prime is 84507823. The next prime is 84507859. The reversal of 84507838 is 83870548.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 84507794 and 84507803.

It is a congruent number.

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, 161013 + ... + 161536.

It is an arithmetic number, because the mean of its divisors is an integer number (15966225).

Almost surely, 2^84507838 is an apocalyptic number.

84507838 is a deficient number, since it is larger than the sum of its proper divisors (43221962).

84507838 is a wasteful number, since it uses less digits than its factorization.

84507838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322682.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 84507838 is about 9192.8144765355. The cubic root of 84507838 is about 438.8327152542.

The spelling of 84507838 in words is "eighty-four million, five hundred seven thousand, eight hundred thirty-eight".