3494947 has 2 divisors, whose sum is σ = 3494948. Its totient is φ = 3494946.

The previous prime is 3494923. The next prime is 3494951. The reversal of 3494947 is 7494943.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3494947 - 2¹⁹ = 2970659 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (3494987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747473 + 1747474.

It is an arithmetic number, because the mean of its divisors is an integer number (1747474).

Almost surely, 2^3494947 is an apocalyptic number.

3494947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3494947 is an equidigital number, since it uses as much as digits as its factorization.

3494947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 3494947 is about 1869.4777345558. The cubic root of 3494947 is about 151.7563472887.

It can be divided in two parts, 3 and 494947, that multiplied together give a palindrome (1484841).

The spelling of 3494947 in words is "three million, four hundred ninety-four thousand, nine hundred forty-seven".