3426649 has 2 divisors, whose sum is σ = 3426650. Its totient is φ = 3426648.

The previous prime is 3426641. The next prime is 3426653. The reversal of 3426649 is 9466243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 753424 = 1635^2 + 868^2 .

It is an emirp because it is prime and its reverse (9466243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3426649 - 2³ = 3426641 is a prime.

It is not a weakly prime, because it can be changed into another prime (3426641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713324 + 1713325.

It is an arithmetic number, because the mean of its divisors is an integer number (1713325).

Almost surely, 2^3426649 is an apocalyptic number.

It is an amenable number.

3426649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3426649 is an equidigital number, since it uses as much as digits as its factorization.

3426649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 3426649 is about 1851.1210117116. The cubic root of 3426649 is about 150.7612999825.

The spelling of 3426649 in words is "three million, four hundred twenty-six thousand, six hundred forty-nine".