2616431 has 4 divisors (see below), whose sum is σ = 2700864. Its totient is φ = 2532000.

The previous prime is 2616407. The next prime is 2616437. The reversal of 2616431 is 1346162.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2616431 is a prime.

It is a super-2 number, since 2×2616431² = 13691422355522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2616397 and 2616406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2616437) 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, 42170 + ... + 42231.

It is an arithmetic number, because the mean of its divisors is an integer number (675216).

2^2616431 is an apocalyptic number.

2616431 is a deficient number, since it is larger than the sum of its proper divisors (84433).

2616431 is an equidigital number, since it uses as much as digits as its factorization.

2616431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84432.

The product of its digits is 864, while the sum is 23.

The square root of 2616431 is about 1617.5385621369. The cubic root of 2616431 is about 137.7959421989.

The spelling of 2616431 in words is "two million, six hundred sixteen thousand, four hundred thirty-one".