6761561 has 8 divisors (see below), whose sum is σ = 6943104. Its totient is φ = 6581680.

The previous prime is 6761551. The next prime is 6761567. The reversal of 6761561 is 1651676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6761561 - 2⁶ = 6761497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6761567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13526 + ... + 14016.

It is an arithmetic number, because the mean of its divisors is an integer number (867888).

Almost surely, 2^6761561 is an apocalyptic number.

It is an amenable number.

6761561 is a deficient number, since it is larger than the sum of its proper divisors (181543).

6761561 is a wasteful number, since it uses less digits than its factorization.

6761561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 7560, while the sum is 32.

The square root of 6761561 is about 2600.3001749798. The cubic root of 6761561 is about 189.0959918492.

It can be divided in two parts, 67615 and 61, that added together give a palindrome (67676).

The spelling of 6761561 in words is "six million, seven hundred sixty-one thousand, five hundred sixty-one".