669584434 has 32 divisors (see below), whose sum is σ = 1082252160. Its totient is φ = 309744000.

The previous prime is 669584431. The next prime is 669584437. The reversal of 669584434 is 434485966.

It is an interprime number because it is at equal distance from previous prime (669584431) and next prime (669584437).

It is not an unprimeable number, because it can be changed into a prime (669584431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349062 + ... + 350974.

It is an arithmetic number, because the mean of its divisors is an integer number (33820380).

Almost surely, 2^669584434 is an apocalyptic number.

669584434 is a deficient number, since it is larger than the sum of its proper divisors (412667726).

669584434 is a wasteful number, since it uses less digits than its factorization.

669584434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its digits is 2488320, while the sum is 49.

The square root of 669584434 is about 25876.3296083506. The cubic root of 669584434 is about 874.8530622379.

The spelling of 669584434 in words is "six hundred sixty-nine million, five hundred eighty-four thousand, four hundred thirty-four".