669374 has 8 divisors (see below), whose sum is σ = 1025568. Its totient is φ = 327520.

The previous prime is 669371. The next prime is 669377. The reversal of 669374 is 473966.

It is an interprime number because it is at equal distance from previous prime (669371) and next prime (669377).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3467 + ... + 3654.

It is an arithmetic number, because the mean of its divisors is an integer number (128196).

2⁶⁶⁹³⁷⁴ is an apocalyptic number.

669374 is a deficient number, since it is larger than the sum of its proper divisors (356194).

669374 is a wasteful number, since it uses less digits than its factorization.

669374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170.

The product of its digits is 27216, while the sum is 35.

The square root of 669374 is about 818.1527974651. The cubic root of 669374 is about 87.4761404333.

The spelling of 669374 in words is "six hundred sixty-nine thousand, three hundred seventy-four".