4011647 has 2 divisors, whose sum is σ = 4011648. Its totient is φ = 4011646.

The previous prime is 4011583. The next prime is 4011649. The reversal of 4011647 is 7461104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4011647 - 2⁶ = 4011583 is a prime.

Together with 4011649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4011649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005823 + 2005824.

It is an arithmetic number, because the mean of its divisors is an integer number (2005824).

Almost surely, 2^4011647 is an apocalyptic number.

4011647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011647 is an equidigital number, since it uses as much as digits as its factorization.

4011647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4011647 is about 2002.9096335082. The cubic root of 4011647 is about 158.8940264004.

It can be divided in two parts, 401 and 1647, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 4011647 in words is "four million, eleven thousand, six hundred forty-seven".