6520967 has 4 divisors (see below), whose sum is σ = 6531096. Its totient is φ = 6510840.

The previous prime is 6520963. The next prime is 6520973. The reversal of 6520967 is 7690256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6520967 - 2² = 6520963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520963) 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, 4028 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (1632774).

Almost surely, 2^6520967 is an apocalyptic number.

6520967 is a deficient number, since it is larger than the sum of its proper divisors (10129).

6520967 is an equidigital number, since it uses as much as digits as its factorization.

6520967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 6520967 is about 2553.6184131542. The cubic root of 6520967 is about 186.8260080070.

The spelling of 6520967 in words is "six million, five hundred twenty thousand, nine hundred sixty-seven".