6613491 has 8 divisors (see below), whose sum is σ = 9056464. Its totient is φ = 4289760.

The previous prime is 6613483. The next prime is 6613507. The reversal of 6613491 is 1943166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6613491 - 2³ = 6613483 is a prime.

It is a Duffinian number.

6613491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6613471) 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, 29680 + ... + 29901.

It is an arithmetic number, because the mean of its divisors is an integer number (1132058).

Almost surely, 2^6613491 is an apocalyptic number.

6613491 is a deficient number, since it is larger than the sum of its proper divisors (2442973).

6613491 is a wasteful number, since it uses less digits than its factorization.

6613491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59621.

The product of its digits is 3888, while the sum is 30.

The square root of 6613491 is about 2571.6708576332. The cubic root of 6613491 is about 187.7054672061.

The spelling of 6613491 in words is "six million, six hundred thirteen thousand, four hundred ninety-one".