2047651 has 2 divisors, whose sum is σ = 2047652. Its totient is φ = 2047650.

The previous prime is 2047637. The next prime is 2047699. The reversal of 2047651 is 1567402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2047651 - 2⁷ = 2047523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2047351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023825 + 1023826.

It is an arithmetic number, because the mean of its divisors is an integer number (1023826).

2^2047651 is an apocalyptic number.

2047651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047651 is an equidigital number, since it uses as much as digits as its factorization.

2047651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2047651 is about 1430.9615648228. The cubic root of 2047651 is about 126.9848701674.

Subtracting from 2047651 its reverse (1567402), we obtain a square (480249 = 693²).

The spelling of 2047651 in words is "two million, forty-seven thousand, six hundred fifty-one".