84374369 has 4 divisors (see below), whose sum is σ = 87283860. Its totient is φ = 81464880.

The previous prime is 84374347. The next prime is 84374371. The reversal of 84374369 is 96347348.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63808144 + 20566225 = 7988^2 + 4535^2 .

It is a cyclic number.

It is not a de Polignac number, because 84374369 - 2⁸ = 84374113 is a prime.

It is a super-2 number, since 2×84374369² = 14238068288296322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84374869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454702 + ... + 1454759.

It is an arithmetic number, because the mean of its divisors is an integer number (21820965).

Almost surely, 2^84374369 is an apocalyptic number.

It is an amenable number.

84374369 is a deficient number, since it is larger than the sum of its proper divisors (2909491).

84374369 is a wasteful number, since it uses less digits than its factorization.

84374369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909490.

The product of its digits is 435456, while the sum is 44.

The square root of 84374369 is about 9185.5521880832. The cubic root of 84374369 is about 438.6015673632.

The spelling of 84374369 in words is "eighty-four million, three hundred seventy-four thousand, three hundred sixty-nine".