669743702 has 16 divisors (see below), whose sum is σ = 1029929472. Its totient is φ = 326488680.

The previous prime is 669743699. The next prime is 669743717. The reversal of 669743702 is 207347966.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11177 + ... + 38267.

It is an arithmetic number, because the mean of its divisors is an integer number (64370592).

Almost surely, 2^669743702 is an apocalyptic number.

669743702 is a deficient number, since it is larger than the sum of its proper divisors (360185770).

669743702 is a wasteful number, since it uses less digits than its factorization.

669743702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27403.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 669743702 is about 25879.4069097420. The cubic root of 669743702 is about 874.9224212036.

The spelling of 669743702 in words is "six hundred sixty-nine million, seven hundred forty-three thousand, seven hundred two".