84665121 has 8 divisors (see below), whose sum is σ = 118828320. Its totient is φ = 53472672.

The previous prime is 84665107. The next prime is 84665129. The reversal of 84665121 is 12156648.

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

It is not a de Polignac number, because 84665121 - 2⁵ = 84665089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84665129) 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, 742620 + ... + 742733.

It is an arithmetic number, because the mean of its divisors is an integer number (14853540).

Almost surely, 2^84665121 is an apocalyptic number.

It is an amenable number.

84665121 is a deficient number, since it is larger than the sum of its proper divisors (34163199).

84665121 is a wasteful number, since it uses less digits than its factorization.

84665121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485375.

The product of its digits is 11520, while the sum is 33.

The square root of 84665121 is about 9201.3651704516. The cubic root of 84665121 is about 439.1047931744.

The spelling of 84665121 in words is "eighty-four million, six hundred sixty-five thousand, one hundred twenty-one".