1075477891 has 2 divisors, whose sum is σ = 1075477892. Its totient is φ = 1075477890.

The previous prime is 1075477877. The next prime is 1075477951. The reversal of 1075477891 is 1987745701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1075477891 - 2²¹ = 1073380739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1075477831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537738945 + 537738946.

It is an arithmetic number, because the mean of its divisors is an integer number (537738946).

Almost surely, 2^1075477891 is an apocalyptic number.

1075477891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075477891 is an equidigital number, since it uses as much as digits as its factorization.

1075477891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 49.

The square root of 1075477891 is about 32794.4795811734. The cubic root of 1075477891 is about 1024.5515836693.

The spelling of 1075477891 in words is "one billion, seventy-five million, four hundred seventy-seven thousand, eight hundred ninety-one".