84130481 has 4 divisors (see below), whose sum is σ = 87788352. Its totient is φ = 80472612.

The previous prime is 84130471. The next prime is 84130507. The reversal of 84130481 is 18403148.

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 84130481 - 2²⁶ = 17021617 is a prime.

It is a super-2 number, since 2×84130481² = 14155875666582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84130411) 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, 1828901 + ... + 1828946.

It is an arithmetic number, because the mean of its divisors is an integer number (21947088).

Almost surely, 2^84130481 is an apocalyptic number.

It is an amenable number.

84130481 is a deficient number, since it is larger than the sum of its proper divisors (3657871).

84130481 is a wasteful number, since it uses less digits than its factorization.

84130481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657870.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 84130481 is about 9172.2669498876. The cubic root of 84130481 is about 438.1785601827.

The spelling of 84130481 in words is "eighty-four million, one hundred thirty thousand, four hundred eighty-one".