6723513 has 16 divisors (see below), whose sum is σ = 10013760. Its totient is φ = 4458528.

The previous prime is 6723503. The next prime is 6723533. The reversal of 6723513 is 3153276.

It is a happy number.

6723513 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 6723513 - 2⁸ = 6723257 is a prime.

It is a super-2 number, since 2×6723513² = 90411254122338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6723503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5581 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (625860).

Almost surely, 2^6723513 is an apocalyptic number.

It is an amenable number.

6723513 is a deficient number, since it is larger than the sum of its proper divisors (3290247).

6723513 is a wasteful number, since it uses less digits than its factorization.

6723513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1327 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 6723513 is about 2592.9737754169. The cubic root of 6723513 is about 188.7406369345.

Adding to 6723513 its reverse (3153276), we get a palindrome (9876789).

The spelling of 6723513 in words is "six million, seven hundred twenty-three thousand, five hundred thirteen".