6661214 has 32 divisors (see below), whose sum is σ = 12082176. Its totient is φ = 2692800.

The previous prime is 6661211. The next prime is 6661217. The reversal of 6661214 is 4121666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6661211) and next prime (6661217).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44039 + ... + 44189.

It is an arithmetic number, because the mean of its divisors is an integer number (377568).

Almost surely, 2^6661214 is an apocalyptic number.

6661214 is a deficient number, since it is larger than the sum of its proper divisors (5420962).

6661214 is a wasteful number, since it uses less digits than its factorization.

6661214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its digits is 1728, while the sum is 26.

The square root of 6661214 is about 2580.9327771176. The cubic root of 6661214 is about 188.1558802227.

The spelling of 6661214 in words is "six million, six hundred sixty-one thousand, two hundred fourteen".