84257343 has 24 divisors (see below), whose sum is σ = 128551280. Its totient is φ = 53032320.

The previous prime is 84257317. The next prime is 84257351. The reversal of 84257343 is 34375248.

It is a happy number.

84257343 is a `hidden beast` number, since 8 + 42 + 573 + 43 = 666.

It is not a de Polignac number, because 84257343 - 2⁵ = 84257311 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84257298 and 84257307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84257143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63123 + ... + 64443.

Almost surely, 2^84257343 is an apocalyptic number.

84257343 is a deficient number, since it is larger than the sum of its proper divisors (44293937).

84257343 is a wasteful number, since it uses less digits than its factorization.

84257343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1716 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 84257343 is about 9179.1798653257. The cubic root of 84257343 is about 438.3986955818.

It can be divided in two parts, 842 and 57343, that added together give a palindrome (58185).

The spelling of 84257343 in words is "eighty-four million, two hundred fifty-seven thousand, three hundred forty-three".