2641949 has 2 divisors, whose sum is σ = 2641950. Its totient is φ = 2641948.

The previous prime is 2641939. The next prime is 2641993. The reversal of 2641949 is 9491462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2617924 + 24025 = 1618^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2641949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320974 + 1320975.

It is an arithmetic number, because the mean of its divisors is an integer number (1320975).

2^2641949 is an apocalyptic number.

It is an amenable number.

2641949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641949 is an equidigital number, since it uses as much as digits as its factorization.

2641949 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 2641949 is about 1625.4073335629. The cubic root of 2641949 is about 138.2424673827.

The spelling of 2641949 in words is "two million, six hundred forty-one thousand, nine hundred forty-nine".