2449691 has 2 divisors, whose sum is σ = 2449692. Its totient is φ = 2449690.

The previous prime is 2449663. The next prime is 2449693. The reversal of 2449691 is 1969442.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2449691 - 2¹⁴ = 2433307 is a prime.

Together with 2449693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2449693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224845 + 1224846.

It is an arithmetic number, because the mean of its divisors is an integer number (1224846).

2^2449691 is an apocalyptic number.

2449691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449691 is an equidigital number, since it uses as much as digits as its factorization.

2449691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 2449691 is about 1565.1488747081. The cubic root of 2449691 is about 134.8043072291.

Subtracting from 2449691 its reverse (1969442), we obtain a square (480249 = 693²).

The spelling of 2449691 in words is "two million, four hundred forty-nine thousand, six hundred ninety-one".