84557945 has 8 divisors (see below), whose sum is σ = 102078144. Its totient is φ = 67240624.

The previous prime is 84557933. The next prime is 84558007. The reversal of 84557945 is 54975548.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84557945 - 2⁴ = 84557929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84557945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49799 + ... + 51468.

It is an arithmetic number, because the mean of its divisors is an integer number (12759768).

Almost surely, 2^84557945 is an apocalyptic number.

It is an amenable number.

84557945 is a deficient number, since it is larger than the sum of its proper divisors (17520199).

84557945 is a wasteful number, since it uses less digits than its factorization.

84557945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101439.

The product of its digits is 1008000, while the sum is 47.

The square root of 84557945 is about 9195.5394077781. The cubic root of 84557945 is about 438.9194300763.

The spelling of 84557945 in words is "eighty-four million, five hundred fifty-seven thousand, nine hundred forty-five".