6610401 has 24 divisors (see below), whose sum is σ = 10979904. Its totient is φ = 3754080.

The previous prime is 6610397. The next prime is 6610411. The reversal of 6610401 is 1040166.

6610401 is a `hidden beast` number, since 661 + 0 + 4 + 0 + 1 = 666.

6610401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6610401 - 2² = 6610397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6610411) 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 23 ways as a sum of consecutive naturals, for example, 19806 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (457496).

Almost surely, 2^6610401 is an apocalyptic number.

It is an amenable number.

6610401 is a deficient number, since it is larger than the sum of its proper divisors (4369503).

6610401 is a wasteful number, since it uses less digits than its factorization.

6610401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 6610401 is about 2571.0700107154. The cubic root of 6610401 is about 187.6762289793.

Adding to 6610401 its reverse (1040166), we get a palindrome (7650567).

The spelling of 6610401 in words is "six million, six hundred ten thousand, four hundred one".