84213481 has 8 divisors (see below), whose sum is σ = 92572128. Its totient is φ = 75972000.

The previous prime is 84213433. The next prime is 84213487. The reversal of 84213481 is 18431248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84213481 - 2²¹ = 82116329 is a prime.

It is a super-2 number, since 2×84213481² = 14183820764274722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84213487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27780 + ... + 30661.

It is an arithmetic number, because the mean of its divisors is an integer number (11571516).

Almost surely, 2^84213481 is an apocalyptic number.

It is an amenable number.

84213481 is a deficient number, since it is larger than the sum of its proper divisors (8358647).

84213481 is a wasteful number, since it uses less digits than its factorization.

84213481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58583.

The product of its digits is 6144, while the sum is 31.

The square root of 84213481 is about 9176.7903430339. The cubic root of 84213481 is about 438.3226097058.

The spelling of 84213481 in words is "eighty-four million, two hundred thirteen thousand, four hundred eighty-one".