84374845 has 4 divisors (see below), whose sum is σ = 101249820. Its totient is φ = 67499872.

The previous prime is 84374827. The next prime is 84374867. The reversal of 84374845 is 54847348.

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 53494596 + 30880249 = 7314^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 84374845 - 2⁹ = 84374333 is a prime.

It is a super-2 number, since 2×84374845² = 14238228937548050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8437480 + ... + 8437489.

It is an arithmetic number, because the mean of its divisors is an integer number (25312455).

Almost surely, 2^84374845 is an apocalyptic number.

It is an amenable number.

84374845 is a deficient number, since it is larger than the sum of its proper divisors (16874975).

84374845 is a wasteful number, since it uses less digits than its factorization.

84374845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16874974.

The product of its digits is 430080, while the sum is 43.

The square root of 84374845 is about 9185.5780983017. The cubic root of 84374845 is about 438.6023921553.

The spelling of 84374845 in words is "eighty-four million, three hundred seventy-four thousand, eight hundred forty-five".