84547493 has 4 divisors (see below), whose sum is σ = 84823200. Its totient is φ = 84271788.

The previous prime is 84547481. The next prime is 84547543. The reversal of 84547493 is 39474548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84547493 - 2⁶ = 84547429 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 (84547433) 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, 137393 + ... + 138006.

It is an arithmetic number, because the mean of its divisors is an integer number (21205800).

Almost surely, 2^84547493 is an apocalyptic number.

It is an amenable number.

84547493 is a deficient number, since it is larger than the sum of its proper divisors (275707).

84547493 is a wasteful number, since it uses less digits than its factorization.

84547493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275706.

The product of its digits is 483840, while the sum is 44.

The square root of 84547493 is about 9194.9710711889. The cubic root of 84547493 is about 438.9013447467.

The spelling of 84547493 in words is "eighty-four million, five hundred forty-seven thousand, four hundred ninety-three".