84464641 has 4 divisors (see below), whose sum is σ = 84483072. Its totient is φ = 84446212.

The previous prime is 84464621. The next prime is 84464663. The reversal of 84464641 is 14646448.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 84464641 - 2⁵ = 84464609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84464641.

It is not an unprimeable number, because it can be changed into a prime (84464621) 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, 3600 + ... + 13486.

It is an arithmetic number, because the mean of its divisors is an integer number (21120768).

Almost surely, 2^84464641 is an apocalyptic number.

It is an amenable number.

84464641 is a deficient number, since it is larger than the sum of its proper divisors (18431).

84464641 is an equidigital number, since it uses as much as digits as its factorization.

84464641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18430.

The product of its digits is 73728, while the sum is 37.

The square root of 84464641 is about 9190.4646781324. The cubic root of 84464641 is about 438.7579313128.

The spelling of 84464641 in words is "eighty-four million, four hundred sixty-four thousand, six hundred forty-one".