6513920 has 72 divisors (see below), whose sum is σ = 17856384. Its totient is φ = 2230272.

The previous prime is 6513919. The next prime is 6513929. The reversal of 6513920 is 293156.

It is a self number, because there is not a number n which added to its sum of digits gives 6513920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513929) 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, 8597 + ... + 9323.

Almost surely, 2^6513920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6513920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8928192).

6513920 is an abundant number, since it is smaller than the sum of its proper divisors (11342464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6513920 is an equidigital number, since it uses as much as digits as its factorization.

6513920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 6513920 is about 2552.2382333944. The cubic root of 6513920 is about 186.7586847906.

The spelling of 6513920 in words is "six million, five hundred thirteen thousand, nine hundred twenty".