667429752 has 64 divisors (see below), whose sum is σ = 1879004160. Its totient is φ = 195724800.

The previous prime is 667429733. The next prime is 667429753. The reversal of 667429752 is 257924766.

667429752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667429753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32593 + ... + 48960.

It is an arithmetic number, because the mean of its divisors is an integer number (29359440).

Almost surely, 2^667429752 is an apocalyptic number.

667429752 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

667429752 is an abundant number, since it is smaller than the sum of its proper divisors (1211574408).

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

667429752 is a wasteful number, since it uses less digits than its factorization.

667429752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81604 (or 81600 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 667429752 is about 25834.6618325071. The cubic root of 667429752 is about 873.9136458659.

The spelling of 667429752 in words is "six hundred sixty-seven million, four hundred twenty-nine thousand, seven hundred fifty-two".