4791491 has 2 divisors, whose sum is σ = 4791492. Its totient is φ = 4791490.

The previous prime is 4791481. The next prime is 4791497. The reversal of 4791491 is 1941974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4791491 - 2¹⁸ = 4529347 is a prime.

It is not a weakly prime, because it can be changed into another prime (4791497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2395745 + 2395746.

It is an arithmetic number, because the mean of its divisors is an integer number (2395746).

Almost surely, 2^4791491 is an apocalyptic number.

4791491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4791491 is an equidigital number, since it uses as much as digits as its factorization.

4791491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 4791491 is about 2188.9474639653. The cubic root of 4791491 is about 168.5867967617.

The spelling of 4791491 in words is "four million, seven hundred ninety-one thousand, four hundred ninety-one".