669349598 has 16 divisors (see below), whose sum is σ = 1024650000. Its totient is φ = 327868992.

The previous prime is 669349591. The next prime is 669349633. The reversal of 669349598 is 895943966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669349591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 36651.

It is an arithmetic number, because the mean of its divisors is an integer number (64040625).

Almost surely, 2^669349598 is an apocalyptic number.

669349598 is a deficient number, since it is larger than the sum of its proper divisors (355300402).

669349598 is a wasteful number, since it uses less digits than its factorization.

669349598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34699.

The product of its digits is 12597120, while the sum is 59.

The square root of 669349598 is about 25871.7915498715. The cubic root of 669349598 is about 874.7507744078.

The spelling of 669349598 in words is "six hundred sixty-nine million, three hundred forty-nine thousand, five hundred ninety-eight".