669671403 has 8 divisors (see below), whose sum is σ = 897570816. Its totient is φ = 444109800.

The previous prime is 669671363. The next prime is 669671419. The reversal of 669671403 is 304176966.

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

It is not a de Polignac number, because 669671403 - 2⁸ = 669671147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (669671423) 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, 583783 + ... + 584928.

It is an arithmetic number, because the mean of its divisors is an integer number (112196352).

Almost surely, 2^669671403 is an apocalyptic number.

669671403 is a deficient number, since it is larger than the sum of its proper divisors (227899413).

669671403 is a wasteful number, since it uses less digits than its factorization.

669671403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168905.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 669671403 is about 25878.0100278209. The cubic root of 669671403 is about 874.8909373727.

The spelling of 669671403 in words is "six hundred sixty-nine million, six hundred seventy-one thousand, four hundred three".