4047629 has 2 divisors, whose sum is σ = 4047630. Its totient is φ = 4047628.

The previous prime is 4047623. The next prime is 4047647. The reversal of 4047629 is 9267404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 1054729 = 1730^2 + 1027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4047629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4047595 and 4047604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4047623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2023814 + 2023815.

It is an arithmetic number, because the mean of its divisors is an integer number (2023815).

Almost surely, 2^4047629 is an apocalyptic number.

It is an amenable number.

4047629 is a deficient number, since it is larger than the sum of its proper divisors (1).

4047629 is an equidigital number, since it uses as much as digits as its factorization.

4047629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 4047629 is about 2011.8720138220. The cubic root of 4047629 is about 159.3676735835.

The spelling of 4047629 in words is "four million, forty-seven thousand, six hundred twenty-nine".