6613320 has 64 divisors (see below), whose sum is σ = 22677120. Its totient is φ = 1511424.

The previous prime is 6613319. The next prime is 6613331. The reversal of 6613320 is 233166.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (354330).

Almost surely, 2^6613320 is an apocalyptic number.

6613320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6613320 is an abundant number, since it is smaller than the sum of its proper divisors (16063800).

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

6613320 is a wasteful number, since it uses less digits than its factorization.

6613320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894 (or 7890 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 6613320 is about 2571.6376105509. The cubic root of 6613320 is about 187.7038494064.

Adding to 6613320 its reverse (233166), we get a palindrome (6846486).

The spelling of 6613320 in words is "six million, six hundred thirteen thousand, three hundred twenty".