84764009 has 12 divisors (see below), whose sum is σ = 94055472. Its totient is φ = 76326360.

The previous prime is 84763981. The next prime is 84764027. The reversal of 84764009 is 90046748.

It is a happy number.

It is not a de Polignac number, because 84764009 - 2⁸ = 84763753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84764089) 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 11 ways as a sum of consecutive naturals, for example, 9674 + ... + 16220.

It is an arithmetic number, because the mean of its divisors is an integer number (7837956).

Almost surely, 2^84764009 is an apocalyptic number.

It is an amenable number.

84764009 is a deficient number, since it is larger than the sum of its proper divisors (9291463).

84764009 is a wasteful number, since it uses less digits than its factorization.

84764009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 6665 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 84764009 is about 9206.7371527594. The cubic root of 84764009 is about 439.2756833027.

The spelling of 84764009 in words is "eighty-four million, seven hundred sixty-four thousand, nine".