2667949 has 2 divisors, whose sum is σ = 2667950. Its totient is φ = 2667948.

The previous prime is 2667947. The next prime is 2667979. The reversal of 2667949 is 9497662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 396900 = 1507^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 2667949 - 2¹ = 2667947 is a prime.

Together with 2667947, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2⁵ + 6⁶ + 6⁸ + 7⁷ + 9⁵ + 4 + 9⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2667941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333974 + 1333975.

It is an arithmetic number, because the mean of its divisors is an integer number (1333975).

2^2667949 is an apocalyptic number.

It is an amenable number.

2667949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667949 is an equidigital number, since it uses as much as digits as its factorization.

2667949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 2667949 is about 1633.3857474583. The cubic root of 2667949 is about 138.6944793150.

The spelling of 2667949 in words is "two million, six hundred sixty-seven thousand, nine hundred forty-nine".