669001508 has 18 divisors (see below), whose sum is σ = 1361896326. Its totient is φ = 286714848.

The previous prime is 669001451. The next prime is 669001511. The reversal of 669001508 is 805100966.

It can be written as a sum of positive squares in only one way, i.e., 587965504 + 81036004 = 24248^2 + 9002^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1706441 + ... + 1706832.

It is an arithmetic number, because the mean of its divisors is an integer number (75660907).

Almost surely, 2^669001508 is an apocalyptic number.

It is an amenable number.

669001508 is an abundant number, since it is smaller than the sum of its proper divisors (692894818).

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

669001508 is a wasteful number, since it uses less digits than its factorization.

669001508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413291 (or 3413282 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 669001508 is about 25865.0634640629. The cubic root of 669001508 is about 874.5991123584.

The spelling of 669001508 in words is "six hundred sixty-nine million, one thousand, five hundred eight".