669737023 has 8 divisors (see below), whose sum is σ = 735638400. Its totient is φ = 606900888.

The previous prime is 669737011. The next prime is 669737027. The reversal of 669737023 is 320737966.

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

It is not a de Polignac number, because 669737023 - 2¹³ = 669728831 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 (669737027) 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, 765853 + ... + 766726.

It is an arithmetic number, because the mean of its divisors is an integer number (91954800).

Almost surely, 2^669737023 is an apocalyptic number.

669737023 is a deficient number, since it is larger than the sum of its proper divisors (65901377).

669737023 is a wasteful number, since it uses less digits than its factorization.

669737023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532621.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 669737023 is about 25879.2778685959. The cubic root of 669737023 is about 874.9195128143.

The spelling of 669737023 in words is "six hundred sixty-nine million, seven hundred thirty-seven thousand, twenty-three".