669413734 has 16 divisors (see below), whose sum is σ = 1097786880. Its totient is φ = 303617160.

The previous prime is 669413711. The next prime is 669413741. The reversal of 669413734 is 437314966.

It is a super-2 number, since 2×669413734² = 896229494535645512, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 22674 + ... + 43045.

It is an arithmetic number, because the mean of its divisors is an integer number (68611680).

Almost surely, 2^669413734 is an apocalyptic number.

669413734 is a deficient number, since it is larger than the sum of its proper divisors (428373146).

669413734 is a wasteful number, since it uses less digits than its factorization.

669413734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66195.

The product of its digits is 326592, while the sum is 43.

The square root of 669413734 is about 25873.0310168716. The cubic root of 669413734 is about 874.7787125854.

The spelling of 669413734 in words is "six hundred sixty-nine million, four hundred thirteen thousand, seven hundred thirty-four".