84676545 has 24 divisors (see below), whose sum is σ = 148636800. Its totient is φ = 44587296.

The previous prime is 84676523. The next prime is 84676561. The reversal of 84676545 is 54567648.

It is not a de Polignac number, because 84676545 - 2⁵ = 84676513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 84676545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8355 + ... + 15464.

It is an arithmetic number, because the mean of its divisors is an integer number (6193200).

Almost surely, 2^84676545 is an apocalyptic number.

It is an amenable number.

84676545 is a deficient number, since it is larger than the sum of its proper divisors (63960255).

84676545 is a wasteful number, since it uses less digits than its factorization.

84676545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23909 (or 23906 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 84676545 is about 9201.9859269616. The cubic root of 84676545 is about 439.1245419898.

The spelling of 84676545 in words is "eighty-four million, six hundred seventy-six thousand, five hundred forty-five".