6610001 has 4 divisors (see below), whose sum is σ = 6734772. Its totient is φ = 6485232.

The previous prime is 6609989. The next prime is 6610049. The reversal of 6610001 is 1000166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000166 = 2 ⋅500083.

It can be written as a sum of positive squares in 2 ways, for example, as 5452225 + 1157776 = 2335^2 + 1076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6610001 is a prime.

It is a super-2 number, since 2×6610001² = 87384226440002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6610091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62306 + ... + 62411.

It is an arithmetic number, because the mean of its divisors is an integer number (1683693).

Almost surely, 2^6610001 is an apocalyptic number.

It is an amenable number.

6610001 is a deficient number, since it is larger than the sum of its proper divisors (124771).

6610001 is a wasteful number, since it uses less digits than its factorization.

6610001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124770.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 6610001 is about 2570.9922209139. The cubic root of 6610001 is about 187.6724434295.

Adding to 6610001 its reverse (1000166), we get a palindrome (7610167).

It can be divided in two parts, 66 and 10001, that multiplied together give a palindrome (660066).

The spelling of 6610001 in words is "six million, six hundred ten thousand, one".