1049389391 has 2 divisors, whose sum is σ = 1049389392. Its totient is φ = 1049389390.

The previous prime is 1049389373. The next prime is 1049389409. The reversal of 1049389391 is 1939839401.

It is a balanced prime because it is at equal distance from previous prime (1049389373) and next prime (1049389409).

It is a cyclic number.

It is not a de Polignac number, because 1049389391 - 2¹⁴ = 1049373007 is a prime.

It is a super-2 number, since 2×1049389391² = 2202436187886701762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049389591) 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, 524694695 + 524694696.

It is an arithmetic number, because the mean of its divisors is an integer number (524694696).

Almost surely, 2^1049389391 is an apocalyptic number.

1049389391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049389391 is an equidigital number, since it uses as much as digits as its factorization.

1049389391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 1049389391 is about 32394.2802204340. The cubic root of 1049389391 is about 1016.1992961464.

The spelling of 1049389391 in words is "one billion, forty-nine million, three hundred eighty-nine thousand, three hundred ninety-one".