84646481 has 4 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 84620964.

The previous prime is 84646469. The next prime is 84646511. The reversal of 84646481 is 18464648.

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 a de Polignac number, because none of the positive numbers 2^k-84646481 is a prime.

It is a super-2 number, since 2×84646481² = 14330053491366722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84646411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6881 + ... + 14718.

It is an arithmetic number, because the mean of its divisors is an integer number (21168000).

Almost surely, 2^84646481 is an apocalyptic number.

It is an amenable number.

84646481 is a deficient number, since it is larger than the sum of its proper divisors (25519).

84646481 is a wasteful number, since it uses less digits than its factorization.

84646481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25518.

The product of its digits is 147456, while the sum is 41.

The square root of 84646481 is about 9200.3522215185. The cubic root of 84646481 is about 439.0725661526.

The spelling of 84646481 in words is "eighty-four million, six hundred forty-six thousand, four hundred eighty-one".