1960047491 has 2 divisors, whose sum is σ = 1960047492. Its totient is φ = 1960047490.

The previous prime is 1960047473. The next prime is 1960047527. The reversal of 1960047491 is 1947400691.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1960047491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1960047451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980023745 + 980023746.

It is an arithmetic number, because the mean of its divisors is an integer number (980023746).

Almost surely, 2^1960047491 is an apocalyptic number.

1960047491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1960047491 is an equidigital number, since it uses as much as digits as its factorization.

1960047491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1960047491 is about 44272.4235952811. The cubic root of 1960047491 is about 1251.4750567614.

The spelling of 1960047491 in words is "one billion, nine hundred sixty million, forty-seven thousand, four hundred ninety-one".