84231853 has 8 divisors (see below), whose sum is σ = 85544888. Its totient is φ = 82923264.

The previous prime is 84231841. The next prime is 84231857. The reversal of 84231853 is 35813248.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15225604 + 69006249 = 3902^2 + 8307^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84231853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84231857) 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, 74851 + ... + 75967.

It is an arithmetic number, because the mean of its divisors is an integer number (10693111).

Almost surely, 2^84231853 is an apocalyptic number.

It is an amenable number.

84231853 is a deficient number, since it is larger than the sum of its proper divisors (1313035).

84231853 is a wasteful number, since it uses less digits than its factorization.

84231853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223.

The product of its digits is 23040, while the sum is 34.

The square root of 84231853 is about 9177.7912920266. The cubic root of 84231853 is about 438.3544821858.

The spelling of 84231853 in words is "eighty-four million, two hundred thirty-one thousand, eight hundred fifty-three".