84491061 has 4 divisors (see below), whose sum is σ = 112654752. Its totient is φ = 56327372.

The previous prime is 84491059. The next prime is 84491093. The reversal of 84491061 is 16019448.

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 84491061 - 2¹ = 84491059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84493061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14081841 + ... + 14081846.

It is an arithmetic number, because the mean of its divisors is an integer number (28163688).

Almost surely, 2^84491061 is an apocalyptic number.

It is an amenable number.

84491061 is a deficient number, since it is larger than the sum of its proper divisors (28163691).

84491061 is a wasteful number, since it uses less digits than its factorization.

84491061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163690.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 84491061 is about 9191.9019250643. The cubic root of 84491061 is about 438.8036734363.

The spelling of 84491061 in words is "eighty-four million, four hundred ninety-one thousand, sixty-one".