2949643 has 2 divisors, whose sum is σ = 2949644. Its totient is φ = 2949642.

The previous prime is 2949637. The next prime is 2949647. The reversal of 2949643 is 3469492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2949643 - 2¹³ = 2941451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2949647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474821 + 1474822.

It is an arithmetic number, because the mean of its divisors is an integer number (1474822).

2^2949643 is an apocalyptic number.

2949643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949643 is an equidigital number, since it uses as much as digits as its factorization.

2949643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 2949643 is about 1717.4524738694. The cubic root of 2949643 is about 143.4134285831.

The spelling of 2949643 in words is "two million, nine hundred forty-nine thousand, six hundred forty-three".