1027791 has 6 divisors (see below), whose sum is σ = 1484600. Its totient is φ = 685188.

The previous prime is 1027787. The next prime is 1027799. The reversal of 1027791 is 1977201.

It is not a de Polignac number, because 1027791 - 2² = 1027787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57091 + ... + 57108.

2^1027791 is an apocalyptic number.

1027791 is a deficient number, since it is larger than the sum of its proper divisors (456809).

1027791 is a wasteful number, since it uses less digits than its factorization.

1027791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114205 (or 114202 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1027791 is about 1013.8002761886. The cubic root of 1027791 is about 100.9179152033.

The spelling of 1027791 in words is "one million, twenty-seven thousand, seven hundred ninety-one".