83484561 has 4 divisors (see below), whose sum is σ = 111312752. Its totient is φ = 55656372.

The previous prime is 83484559. The next prime is 83484563. The reversal of 83484561 is 16548438.

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 an interprime number because it is at equal distance from previous prime (83484559) and next prime (83484563).

It is not a de Polignac number, because 83484561 - 2¹ = 83484559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83484563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13914091 + ... + 13914096.

It is an arithmetic number, because the mean of its divisors is an integer number (27828188).

Almost surely, 2^83484561 is an apocalyptic number.

It is an amenable number.

83484561 is a deficient number, since it is larger than the sum of its proper divisors (27828191).

83484561 is a wasteful number, since it uses less digits than its factorization.

83484561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27828190.

The product of its digits is 92160, while the sum is 39.

The square root of 83484561 is about 9136.9886177011. The cubic root of 83484561 is about 437.0542917708.

The spelling of 83484561 in words is "eighty-three million, four hundred eighty-four thousand, five hundred sixty-one".