1074687491 has 2 divisors, whose sum is σ = 1074687492. Its totient is φ = 1074687490.

The previous prime is 1074687479. The next prime is 1074687499. The reversal of 1074687491 is 1947864701.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1074687491 - 2¹⁴ = 1074671107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1074687499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537343745 + 537343746.

It is an arithmetic number, because the mean of its divisors is an integer number (537343746).

Almost surely, 2^1074687491 is an apocalyptic number.

1074687491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074687491 is an equidigital number, since it uses as much as digits as its factorization.

1074687491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1074687491 is about 32782.4265575323. The cubic root of 1074687491 is about 1024.3005312325.

The spelling of 1074687491 in words is "one billion, seventy-four million, six hundred eighty-seven thousand, four hundred ninety-one".