6617401 has 6 divisors (see below), whose sum is σ = 7697850. Its totient is φ = 5672016.

The previous prime is 6617383. The next prime is 6617407. The reversal of 6617401 is 1047166.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 2637376 = 1995^2 + 1624^2 .

It is not a de Polignac number, because 6617401 - 2¹¹ = 6615353 is a prime.

It is a Duffinian number.

6617401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6617407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67476 + ... + 67573.

It is an arithmetic number, because the mean of its divisors is an integer number (1282975).

Almost surely, 2^6617401 is an apocalyptic number.

It is an amenable number.

6617401 is a deficient number, since it is larger than the sum of its proper divisors (1080449).

6617401 is a wasteful number, since it uses less digits than its factorization.

6617401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135063 (or 135056 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 6617401 is about 2572.4309514543. The cubic root of 6617401 is about 187.7424513943.

The spelling of 6617401 in words is "six million, six hundred seventeen thousand, four hundred one".