3240947 has 2 divisors, whose sum is σ = 3240948. Its totient is φ = 3240946.

The previous prime is 3240943. The next prime is 3240959. The reversal of 3240947 is 7490423.

It is a weak prime.

It is an emirp because it is prime and its reverse (7490423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3240947 - 2² = 3240943 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3240943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620473 + 1620474.

It is an arithmetic number, because the mean of its divisors is an integer number (1620474).

Almost surely, 2^3240947 is an apocalyptic number.

3240947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240947 is an equidigital number, since it uses as much as digits as its factorization.

3240947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 3240947 is about 1800.2630363366. The cubic root of 3240947 is about 147.9871397396.

The spelling of 3240947 in words is "three million, two hundred forty thousand, nine hundred forty-seven".