6617961 has 24 divisors (see below), whose sum is σ = 11082240. Its totient is φ = 3727296.

The previous prime is 6617957. The next prime is 6617969. The reversal of 6617961 is 1697166.

It is not a de Polignac number, because 6617961 - 2² = 6617957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3880 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (461760).

Almost surely, 2^6617961 is an apocalyptic number.

It is an amenable number.

6617961 is a deficient number, since it is larger than the sum of its proper divisors (4464279).

6617961 is a wasteful number, since it uses less digits than its factorization.

6617961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1522 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 6617961 is about 2572.5397956106. The cubic root of 6617961 is about 187.7477471696.

The spelling of 6617961 in words is "six million, six hundred seventeen thousand, nine hundred sixty-one".