2616421 has 8 divisors (see below), whose sum is σ = 2718144. Its totient is φ = 2516640.

The previous prime is 2616407. The next prime is 2616437. The reversal of 2616421 is 1246162.

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

It is a cyclic number.

It is not a de Polignac number, because 2616421 - 2¹¹ = 2614373 is a prime.

It is a super-3 number, since 3×2616421³ = 53733376715969959383, which contains 333 as substring.

It is a Duffinian number.

2616421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2616392 and 2616401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2616461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (339768).

2^2616421 is an apocalyptic number.

It is an amenable number.

2616421 is a deficient number, since it is larger than the sum of its proper divisors (101723).

2616421 is an equidigital number, since it uses as much as digits as its factorization.

2616421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

The product of its digits is 576, while the sum is 22.

The square root of 2616421 is about 1617.5354710176. The cubic root of 2616421 is about 137.7957666466.

The spelling of 2616421 in words is "two million, six hundred sixteen thousand, four hundred twenty-one".