669049702 has 8 divisors (see below), whose sum is σ = 1003735656. Its totient is φ = 334471152.

The previous prime is 669049699. The next prime is 669049709. The reversal of 669049702 is 207940966.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669049709) 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, 8868 + ... + 37639.

It is an arithmetic number, because the mean of its divisors is an integer number (125466957).

Almost surely, 2^669049702 is an apocalyptic number.

669049702 is a deficient number, since it is larger than the sum of its proper divisors (334685954).

669049702 is a wasteful number, since it uses less digits than its factorization.

669049702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53702.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 669049702 is about 25865.9950900792. The cubic root of 669049702 is about 874.6201135156.

The spelling of 669049702 in words is "six hundred sixty-nine million, forty-nine thousand, seven hundred two".