3896947 has 2 divisors, whose sum is σ = 3896948. Its totient is φ = 3896946.

The previous prime is 3896941. The next prime is 3896969. The reversal of 3896947 is 7496983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3896947 - 2⁷ = 3896819 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 3896897 and 3896906.

It is not a weakly prime, because it can be changed into another prime (3896941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948473 + 1948474.

It is an arithmetic number, because the mean of its divisors is an integer number (1948474).

Almost surely, 2^3896947 is an apocalyptic number.

3896947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3896947 is an equidigital number, since it uses as much as digits as its factorization.

3896947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 3896947 is about 1974.0686411571. The cubic root of 3896947 is about 157.3650073683.

The spelling of 3896947 in words is "three million, eight hundred ninety-six thousand, nine hundred forty-seven".