6610431 has 4 divisors (see below), whose sum is σ = 8813912. Its totient is φ = 4406952.

The previous prime is 6610427. The next prime is 6610441. The reversal of 6610431 is 1340166.

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

It is not a de Polignac number, because 6610431 - 2² = 6610427 is a prime.

It is a super-2 number, since 2×6610431² = 87395596011522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

6610431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6610398 and 6610407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6610411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101736 + ... + 1101741.

It is an arithmetic number, because the mean of its divisors is an integer number (2203478).

Almost surely, 2^6610431 is an apocalyptic number.

6610431 is a deficient number, since it is larger than the sum of its proper divisors (2203481).

6610431 is a wasteful number, since it uses less digits than its factorization.

6610431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203480.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 6610431 is about 2571.0758448556. The cubic root of 6610431 is about 187.6765128894.

Adding to 6610431 its reverse (1340166), we get a palindrome (7950597).

The spelling of 6610431 in words is "six million, six hundred ten thousand, four hundred thirty-one".