669100893 has 4 divisors (see below), whose sum is σ = 892134528. Its totient is φ = 446067260.

The previous prime is 669100871. The next prime is 669100961. The reversal of 669100893 is 398001966.

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.

It is a cyclic number.

It is not a de Polignac number, because 669100893 - 2¹² = 669096797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669100813) 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, 111516813 + ... + 111516818.

It is an arithmetic number, because the mean of its divisors is an integer number (223033632).

Almost surely, 2^669100893 is an apocalyptic number.

It is an amenable number.

669100893 is a deficient number, since it is larger than the sum of its proper divisors (223033635).

669100893 is a wasteful number, since it uses less digits than its factorization.

669100893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223033634.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 669100893 is about 25866.9846135958. The cubic root of 669100893 is about 874.6424195497.

The spelling of 669100893 in words is "six hundred sixty-nine million, one hundred thousand, eight hundred ninety-three".