667469375 has 10 divisors (see below), whose sum is σ = 834070512. Its totient is φ = 533975000.

The previous prime is 667469359. The next prime is 667469389. The reversal of 667469375 is 573964766.

It is not a de Polignac number, because 667469375 - 2⁴ = 667469359 is a prime.

It is a Duffinian number.

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 9 ways as a sum of consecutive naturals, for example, 533351 + ... + 534600.

Almost surely, 2^667469375 is an apocalyptic number.

667469375 is a deficient number, since it is larger than the sum of its proper divisors (166601137).

667469375 is an equidigital number, since it uses as much as digits as its factorization.

667469375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067971 (or 1067956 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 53.

The square root of 667469375 is about 25835.4286784640. The cubic root of 667469375 is about 873.9309392689.

The spelling of 667469375 in words is "six hundred sixty-seven million, four hundred sixty-nine thousand, three hundred seventy-five".