84121365 has 8 divisors (see below), whose sum is σ = 134594208. Its totient is φ = 44864720.

The previous prime is 84121357. The next prime is 84121393. The reversal of 84121365 is 56312148.

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

It is not a de Polignac number, because 84121365 - 2³ = 84121357 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804031 + ... + 2804060.

It is an arithmetic number, because the mean of its divisors is an integer number (16824276).

Almost surely, 2^84121365 is an apocalyptic number.

It is an amenable number.

84121365 is a deficient number, since it is larger than the sum of its proper divisors (50472843).

84121365 is a wasteful number, since it uses less digits than its factorization.

84121365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608099.

The product of its digits is 5760, while the sum is 30.

The square root of 84121365 is about 9171.7700036580. The cubic root of 84121365 is about 438.1627332593.

The spelling of 84121365 in words is "eighty-four million, one hundred twenty-one thousand, three hundred sixty-five".