6665742 has 24 divisors (see below), whose sum is σ = 14490216. Its totient is φ = 2214576.

The previous prime is 6665741. The next prime is 6665773. The reversal of 6665742 is 2475666.

It is a junction number, because it is equal to n+sod(n) for n = 6665697 and 6665706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9508 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (603759).

Almost surely, 2^6665742 is an apocalyptic number.

6665742 is an abundant number, since it is smaller than the sum of its proper divisors (7824474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6665742 is a wasteful number, since it uses less digits than its factorization.

6665742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1229 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6665742 is about 2581.8098303322. The cubic root of 6665742 is about 188.1985039274.

The spelling of 6665742 in words is "six million, six hundred sixty-five thousand, seven hundred forty-two".