84387243 has 8 divisors (see below), whose sum is σ = 112560448. Its totient is φ = 56236104.

The previous prime is 84387211. The next prime is 84387257. The reversal of 84387243 is 34278348.

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

It is not a de Polignac number, because 84387243 - 2⁵ = 84387211 is a prime.

It is a super-2 number, since 2×84387243² = 14242413562282098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84387203) 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, 8496 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (14070056).

Almost surely, 2^84387243 is an apocalyptic number.

84387243 is a deficient number, since it is larger than the sum of its proper divisors (28173205).

84387243 is a wasteful number, since it uses less digits than its factorization.

84387243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11033.

The product of its digits is 129024, while the sum is 39.

The square root of 84387243 is about 9186.2529357731. The cubic root of 84387243 is about 438.6238737795.

The spelling of 84387243 in words is "eighty-four million, three hundred eighty-seven thousand, two hundred forty-three".