669230933 has 4 divisors (see below), whose sum is σ = 764835360. Its totient is φ = 573626508.

The previous prime is 669230921. The next prime is 669230963. The reversal of 669230933 is 339032966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339032966 = 2 ⋅169516483.

It is not a de Polignac number, because 669230933 - 2⁴ = 669230917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669230963) 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, 47802203 + ... + 47802216.

It is an arithmetic number, because the mean of its divisors is an integer number (191208840).

Almost surely, 2^669230933 is an apocalyptic number.

It is an amenable number.

669230933 is a deficient number, since it is larger than the sum of its proper divisors (95604427).

669230933 is an equidigital number, since it uses as much as digits as its factorization.

669230933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95604426.

The product of its (nonzero) digits is 157464, while the sum is 41.

The square root of 669230933 is about 25869.4981203733. The cubic root of 669230933 is about 874.6990782360.

The spelling of 669230933 in words is "six hundred sixty-nine million, two hundred thirty thousand, nine hundred thirty-three".