669030039 has 12 divisors (see below), whose sum is σ = 967961176. Its totient is φ = 445288752.

The previous prime is 669030017. The next prime is 669030059. The reversal of 669030039 is 930030966.

It is not a de Polignac number, because 669030039 - 2⁸ = 669029783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 669029985 and 669030012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669030059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55117 + ... + 66150.

Almost surely, 2^669030039 is an apocalyptic number.

669030039 is a deficient number, since it is larger than the sum of its proper divisors (298931137).

669030039 is a wasteful number, since it uses less digits than its factorization.

669030039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121886 (or 121883 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 669030039 is about 25865.6149936552. The cubic root of 669030039 is about 874.6115452315.

The spelling of 669030039 in words is "six hundred sixty-nine million, thirty thousand, thirty-nine".