6617490 has 48 divisors (see below), whose sum is σ = 17466624. Its totient is φ = 1603360.

The previous prime is 6617489. The next prime is 6617497. The reversal of 6617490 is 947166.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6617497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2719 + ... + 4541.

It is an arithmetic number, because the mean of its divisors is an integer number (363888).

Almost surely, 2^6617490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6617490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8733312).

6617490 is an abundant number, since it is smaller than the sum of its proper divisors (10849134).

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

6617490 is a wasteful number, since it uses less digits than its factorization.

6617490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 6617490 is about 2572.4482502083. The cubic root of 6617490 is about 187.7432930643.

The spelling of 6617490 in words is "six million, six hundred seventeen thousand, four hundred ninety".