4927409 has 2 divisors, whose sum is σ = 4927410. Its totient is φ = 4927408.

The previous prime is 4927387. The next prime is 4927423. The reversal of 4927409 is 9047294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3045025 + 1882384 = 1745^2 + 1372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4927409 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4927459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2463704 + 2463705.

It is an arithmetic number, because the mean of its divisors is an integer number (2463705).

Almost surely, 2^4927409 is an apocalyptic number.

It is an amenable number.

4927409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4927409 is an equidigital number, since it uses as much as digits as its factorization.

4927409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 4927409 is about 2219.7767905805. The cubic root of 4927409 is about 170.1660315631.

Subtracting 4927409 from its reverse (9047294), we obtain a triangular number (4119885 = T₂₈₇₀).

The spelling of 4927409 in words is "four million, nine hundred twenty-seven thousand, four hundred nine".