84406481 has 4 divisors (see below), whose sum is σ = 88076352. Its totient is φ = 80736612.

The previous prime is 84406477. The next prime is 84406507. The reversal of 84406481 is 18460448.

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 84406481 - 2² = 84406477 is a prime.

It is a super-2 number, since 2×84406481² = 14248908069606722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84402481) 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, 1834901 + ... + 1834946.

It is an arithmetic number, because the mean of its divisors is an integer number (22019088).

Almost surely, 2^84406481 is an apocalyptic number.

It is an amenable number.

84406481 is a deficient number, since it is larger than the sum of its proper divisors (3669871).

84406481 is a wasteful number, since it uses less digits than its factorization.

84406481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669870.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 84406481 is about 9187.2999842173. The cubic root of 84406481 is about 438.6572026913.

The spelling of 84406481 in words is "eighty-four million, four hundred six thousand, four hundred eighty-one".