669637093 has 8 divisors (see below), whose sum is σ = 677566656. Its totient is φ = 661735200.

The previous prime is 669637069. The next prime is 669637099. The reversal of 669637093 is 390736966.

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

It is a cyclic number.

It is not a de Polignac number, because 669637093 - 2²⁵ = 636082661 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 (669637099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43953 + ... + 57193.

It is an arithmetic number, because the mean of its divisors is an integer number (84695832).

Almost surely, 2^669637093 is an apocalyptic number.

It is an amenable number.

669637093 is a deficient number, since it is larger than the sum of its proper divisors (7929563).

669637093 is a wasteful number, since it uses less digits than its factorization.

669637093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13835.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The square root of 669637093 is about 25877.3471012776. The cubic root of 669637093 is about 874.8759957060.

The spelling of 669637093 in words is "six hundred sixty-nine million, six hundred thirty-seven thousand, ninety-three".