84618423 has 6 divisors (see below), whose sum is σ = 122226624. Its totient is φ = 56412276.

The previous prime is 84618421. The next prime is 84618463. The reversal of 84618423 is 32481648.

It is not a de Polignac number, because 84618423 - 2¹ = 84618421 is a prime.

It is a super-2 number, since 2×84618423² = 14320555022013858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84618421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4701015 + ... + 4701032.

It is an arithmetic number, because the mean of its divisors is an integer number (20371104).

Almost surely, 2^84618423 is an apocalyptic number.

84618423 is a deficient number, since it is larger than the sum of its proper divisors (37608201).

84618423 is a wasteful number, since it uses less digits than its factorization.

84618423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402053 (or 9402050 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 84618423 is about 9198.8272622112. The cubic root of 84618423 is about 439.0240472642.

The spelling of 84618423 in words is "eighty-four million, six hundred eighteen thousand, four hundred twenty-three".