6613245 has 24 divisors (see below), whose sum is σ = 11889696. Its totient is φ = 3526416.

The previous prime is 6613237. The next prime is 6613253. The reversal of 6613245 is 5423166.

6613245 is a `hidden beast` number, since 6 + 613 + 2 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (6613237) and next prime (6613253).

It is not a de Polignac number, because 6613245 - 2³ = 6613237 is a prime.

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

6613245 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1507 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (495404).

Almost surely, 2^6613245 is an apocalyptic number.

It is an amenable number.

6613245 is a deficient number, since it is larger than the sum of its proper divisors (5276451).

6613245 is an equidigital number, since it uses as much as digits as its factorization.

6613245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463 (or 5451 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 6613245 is about 2571.6230283617. The cubic root of 6613245 is about 187.7031398363.

The spelling of 6613245 in words is "six million, six hundred thirteen thousand, two hundred forty-five".