84160591 has 4 divisors (see below), whose sum is σ = 89111232. Its totient is φ = 79209952.

The previous prime is 84160553. The next prime is 84160613. The reversal of 84160591 is 19506148.

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

It is a cyclic number.

It is not a de Polignac number, because 84160591 - 2⁷ = 84160463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84160501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2475295 + ... + 2475328.

It is an arithmetic number, because the mean of its divisors is an integer number (22277808).

Almost surely, 2^84160591 is an apocalyptic number.

84160591 is a deficient number, since it is larger than the sum of its proper divisors (4950641).

84160591 is a wasteful number, since it uses less digits than its factorization.

84160591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950640.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 84160591 is about 9173.9081639179. The cubic root of 84160591 is about 438.2308281306.

The spelling of 84160591 in words is "eighty-four million, one hundred sixty thousand, five hundred ninety-one".