667342704 has 160 divisors (see below), whose sum is σ = 2062090240. Its totient is φ = 181958400.

The previous prime is 667342699. The next prime is 667342717. The reversal of 667342704 is 407243766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822459 + ... + 823269.

It is an arithmetic number, because the mean of its divisors is an integer number (12888064).

Almost surely, 2^667342704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667342704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031045120).

667342704 is an abundant number, since it is smaller than the sum of its proper divisors (1394747536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667342704 is a wasteful number, since it uses less digits than its factorization.

667342704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 667342704 is about 25832.9770642100. The cubic root of 667342704 is about 873.8756514841.

The spelling of 667342704 in words is "six hundred sixty-seven million, three hundred forty-two thousand, seven hundred four".