2616491 has 2 divisors, whose sum is σ = 2616492. Its totient is φ = 2616490.

The previous prime is 2616469. The next prime is 2616533. The reversal of 2616491 is 1946162.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2616491 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2616461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308245 + 1308246.

It is an arithmetic number, because the mean of its divisors is an integer number (1308246).

2^2616491 is an apocalyptic number.

2616491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2616491 is an equidigital number, since it uses as much as digits as its factorization.

2616491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 2616491 is about 1617.5571087291. The cubic root of 2616491 is about 137.7969955031.

The spelling of 2616491 in words is "two million, six hundred sixteen thousand, four hundred ninety-one".