84217937 has 8 divisors (see below), whose sum is σ = 90537600. Its totient is φ = 78087024.

The previous prime is 84217909. The next prime is 84217961. The reversal of 84217937 is 73971248.

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

It is a cyclic number.

It is not a de Polignac number, because 84217937 - 2¹⁴ = 84201553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84217894 and 84217903.

It is not an unprimeable number, because it can be changed into a prime (84217997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46262 + ... + 48047.

It is an arithmetic number, because the mean of its divisors is an integer number (11317200).

Almost surely, 2^84217937 is an apocalyptic number.

It is an amenable number.

84217937 is a deficient number, since it is larger than the sum of its proper divisors (6319663).

84217937 is a wasteful number, since it uses less digits than its factorization.

84217937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94375.

The product of its digits is 84672, while the sum is 41.

The square root of 84217937 is about 9177.0331262342. The cubic root of 84217937 is about 438.3303405785.

The spelling of 84217937 in words is "eighty-four million, two hundred seventeen thousand, nine hundred thirty-seven".