1027491403 has 2 divisors, whose sum is σ = 1027491404. Its totient is φ = 1027491402.

The previous prime is 1027491391. The next prime is 1027491427. The reversal of 1027491403 is 3041947201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1027491403 - 2⁵ = 1027491371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1027491463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513745701 + 513745702.

It is an arithmetic number, because the mean of its divisors is an integer number (513745702).

Almost surely, 2^1027491403 is an apocalyptic number.

1027491403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027491403 is an equidigital number, since it uses as much as digits as its factorization.

1027491403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1027491403 is about 32054.5067502216. The cubic root of 1027491403 is about 1009.0810852632.

The spelling of 1027491403 in words is "one billion, twenty-seven million, four hundred ninety-one thousand, four hundred three".