84644764 has 6 divisors (see below), whose sum is σ = 148128344. Its totient is φ = 42322380.

The previous prime is 84644737. The next prime is 84644771. The reversal of 84644764 is 46744648.

It is a self number, because there is not a number n which added to its sum of digits gives 84644764.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10580592 + ... + 10580599.

Almost surely, 2^84644764 is an apocalyptic number.

It is an amenable number.

84644764 is a deficient number, since it is larger than the sum of its proper divisors (63483580).

84644764 is a wasteful number, since it uses less digits than its factorization.

84644764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21161195 (or 21161193 counting only the distinct ones).

The product of its digits is 516096, while the sum is 43.

The square root of 84644764 is about 9200.2589094003. The cubic root of 84644764 is about 439.0695973634.

The spelling of 84644764 in words is "eighty-four million, six hundred forty-four thousand, seven hundred sixty-four".