6764561 has 4 divisors (see below), whose sum is σ = 6786624. Its totient is φ = 6742500.

The previous prime is 6764557. The next prime is 6764567. The reversal of 6764561 is 1654676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6764561 - 2² = 6764557 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 (6764567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10565 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (1696656).

Almost surely, 2^6764561 is an apocalyptic number.

It is an amenable number.

6764561 is a deficient number, since it is larger than the sum of its proper divisors (22063).

6764561 is a wasteful number, since it uses less digits than its factorization.

6764561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22062.

The product of its digits is 30240, while the sum is 35.

The square root of 6764561 is about 2600.8769674862. The cubic root of 6764561 is about 189.1239540361.

The spelling of 6764561 in words is "six million, seven hundred sixty-four thousand, five hundred sixty-one".