6616331 has 4 divisors (see below), whose sum is σ = 6757152. Its totient is φ = 6475512.

The previous prime is 6616301. The next prime is 6616339. The reversal of 6616331 is 1336166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6616331 - 2²² = 2422027 is a prime.

It is a super-2 number, since 2×6616331² = 87551671803122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6616331.

It is not an unprimeable number, because it can be changed into a prime (6616339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70340 + ... + 70433.

It is an arithmetic number, because the mean of its divisors is an integer number (1689288).

Almost surely, 2^6616331 is an apocalyptic number.

6616331 is a deficient number, since it is larger than the sum of its proper divisors (140821).

6616331 is a wasteful number, since it uses less digits than its factorization.

6616331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140820.

The product of its digits is 1944, while the sum is 26.

The square root of 6616331 is about 2572.2229685624. Note that the first 3 decimals coincide. The cubic root of 6616331 is about 187.7323318498.

The spelling of 6616331 in words is "six million, six hundred sixteen thousand, three hundred thirty-one".