84253943 has 4 divisors (see below), whose sum is σ = 84525168. Its totient is φ = 83982720.

The previous prime is 84253937. The next prime is 84253963. The reversal of 84253943 is 34935248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84253943 - 2⁴ = 84253927 is a prime.

It is a super-2 number, since 2×84253943² = 14197453822094498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84253897 and 84253906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84253963) 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, 135146 + ... + 135767.

It is an arithmetic number, because the mean of its divisors is an integer number (21131292).

Almost surely, 2^84253943 is an apocalyptic number.

84253943 is a deficient number, since it is larger than the sum of its proper divisors (271225).

84253943 is a wasteful number, since it uses less digits than its factorization.

84253943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271224.

The product of its digits is 103680, while the sum is 38.

The square root of 84253943 is about 9178.9946617263. The cubic root of 84253943 is about 438.3927986651.

The spelling of 84253943 in words is "eighty-four million, two hundred fifty-three thousand, nine hundred forty-three".