84218038 has 8 divisors (see below), whose sum is σ = 126376488. Its totient is φ = 42092544.

The previous prime is 84218027. The next prime is 84218039. The reversal of 84218038 is 83081248.

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 = 84217994 and 84218012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84218039) 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, 331 + ... + 12982.

It is an arithmetic number, because the mean of its divisors is an integer number (15797061).

Almost surely, 2^84218038 is an apocalyptic number.

84218038 is a deficient number, since it is larger than the sum of its proper divisors (42158450).

84218038 is a wasteful number, since it uses less digits than its factorization.

84218038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 84218038 is about 9177.0386291003. The cubic root of 84218038 is about 438.3305158038.

The spelling of 84218038 in words is "eighty-four million, two hundred eighteen thousand, thirty-eight".