6661774 has 8 divisors (see below), whose sum is σ = 11420208. Its totient is φ = 2855040.

The previous prime is 6661771. The next prime is 6661777. The reversal of 6661774 is 4771666.

It is an interprime number because it is at equal distance from previous prime (6661771) and next prime (6661777).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237907 + ... + 237934.

It is an arithmetic number, because the mean of its divisors is an integer number (1427526).

Almost surely, 2^6661774 is an apocalyptic number.

6661774 is a deficient number, since it is larger than the sum of its proper divisors (4758434).

6661774 is a wasteful number, since it uses less digits than its factorization.

6661774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475850.

The product of its digits is 42336, while the sum is 37.

The square root of 6661774 is about 2581.0412627465. The cubic root of 6661774 is about 188.1611527522.

The spelling of 6661774 in words is "six million, six hundred sixty-one thousand, seven hundred seventy-four".