6661433 has 8 divisors (see below), whose sum is σ = 7153920. Its totient is φ = 6180160.

The previous prime is 6661429. The next prime is 6661439. The reversal of 6661433 is 3341666.

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 6661433 - 2² = 6661429 is a prime.

It is a super-2 number, since 2×6661433² = 88749379226978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6661396 and 6661405.

It is not an unprimeable number, because it can be changed into a prime (6661439) 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, 1553 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (894240).

Almost surely, 2^6661433 is an apocalyptic number.

It is an amenable number.

6661433 is a deficient number, since it is larger than the sum of its proper divisors (492487).

6661433 is a wasteful number, since it uses less digits than its factorization.

6661433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607.

The product of its digits is 7776, while the sum is 29.

The square root of 6661433 is about 2580.9752032904. The cubic root of 6661433 is about 188.1579421935.

The spelling of 6661433 in words is "six million, six hundred sixty-one thousand, four hundred thirty-three".