2670749 has 2 divisors, whose sum is σ = 2670750. Its totient is φ = 2670748.

The previous prime is 2670739. The next prime is 2670761. The reversal of 2670749 is 9470762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 611524 = 1435^2 + 782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2670749 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 (2670709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335374 + 1335375.

It is an arithmetic number, because the mean of its divisors is an integer number (1335375).

2^2670749 is an apocalyptic number.

It is an amenable number.

2670749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2670749 is an equidigital number, since it uses as much as digits as its factorization.

2670749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 2670749 is about 1634.2426380437. The cubic root of 2670749 is about 138.7429820869.

The spelling of 2670749 in words is "two million, six hundred seventy thousand, seven hundred forty-nine".