669752033 has 8 divisors (see below), whose sum is σ = 715525920. Its totient is φ = 625030560.

The previous prime is 669752029. The next prime is 669752051. The reversal of 669752033 is 330257966.

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 669752033 - 2² = 669752029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669752003) 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, 261788 + ... + 264333.

It is an arithmetic number, because the mean of its divisors is an integer number (89440740).

Almost surely, 2^669752033 is an apocalyptic number.

It is an amenable number.

669752033 is a deficient number, since it is larger than the sum of its proper divisors (45773887).

669752033 is a wasteful number, since it uses less digits than its factorization.

669752033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526207.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 669752033 is about 25879.5678673350. The cubic root of 669752033 is about 874.9260489338.

The spelling of 669752033 in words is "six hundred sixty-nine million, seven hundred fifty-two thousand, thirty-three".