1027491349 has 2 divisors, whose sum is σ = 1027491350. Its totient is φ = 1027491348.

The previous prime is 1027491317. The next prime is 1027491371. The reversal of 1027491349 is 9431947201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 728028324 + 299463025 = 26982^2 + 17305^2 .

It is an emirp because it is prime and its reverse (9431947201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1027491349 - 2⁵ = 1027491317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1027491389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513745674 + 513745675.

It is an arithmetic number, because the mean of its divisors is an integer number (513745675).

Almost surely, 2^1027491349 is an apocalyptic number.

It is an amenable number.

1027491349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027491349 is an equidigital number, since it uses as much as digits as its factorization.

1027491349 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 40.

The square root of 1027491349 is about 32054.5059079063. The cubic root of 1027491349 is about 1009.0810675857.

The spelling of 1027491349 in words is "one billion, twenty-seven million, four hundred ninety-one thousand, three hundred forty-nine".