6660433 has 8 divisors (see below), whose sum is σ = 7229376. Its totient is φ = 6099600.

The previous prime is 6660427. The next prime is 6660473. The reversal of 6660433 is 3340666.

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

It is not a de Polignac number, because 6660433 - 2⁹ = 6659921 is a prime.

It is a super-2 number, since 2×6660433² = 88722735494978, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6660473) 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, 253 + ... + 3658.

It is an arithmetic number, because the mean of its divisors is an integer number (903672).

Almost surely, 2^6660433 is an apocalyptic number.

It is an amenable number.

6660433 is a deficient number, since it is larger than the sum of its proper divisors (568943).

6660433 is a wasteful number, since it uses less digits than its factorization.

6660433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 6660433 is about 2580.7814707952. The cubic root of 6660433 is about 188.1485264338.

The spelling of 6660433 in words is "six million, six hundred sixty thousand, four hundred thirty-three".