6662961 has 6 divisors (see below), whose sum is σ = 9624290. Its totient is φ = 4441968.

The previous prime is 6662959. The next prime is 6662987. The reversal of 6662961 is 1692666.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 6561 = 2580^2 + 81^2 .

It is not a de Polignac number, because 6662961 - 2¹ = 6662959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6662911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370156 + ... + 370173.

Almost surely, 2^6662961 is an apocalyptic number.

It is an amenable number.

6662961 is a deficient number, since it is larger than the sum of its proper divisors (2961329).

6662961 is a wasteful number, since it uses less digits than its factorization.

6662961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740335 (or 740332 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6662961 is about 2581.2711984602. The cubic root of 6662961 is about 188.1723276546.

The spelling of 6662961 in words is "six million, six hundred sixty-two thousand, nine hundred sixty-one".