1034391 has 4 divisors (see below), whose sum is σ = 1379192. Its totient is φ = 689592.

The previous prime is 1034387. The next prime is 1034419. The reversal of 1034391 is 1934301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1934301 = 3 ⋅644767.

It is not a de Polignac number, because 1034391 - 2² = 1034387 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172396 + ... + 172401.

It is an arithmetic number, because the mean of its divisors is an integer number (344798).

2^1034391 is an apocalyptic number.

1034391 is a deficient number, since it is larger than the sum of its proper divisors (344801).

1034391 is an equidigital number, since it uses as much as digits as its factorization.

1034391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344800.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1034391 is about 1017.0501462563. The cubic root of 1034391 is about 101.1334705702.

Adding to 1034391 its reverse (1934301), we get a palindrome (2968692).

The spelling of 1034391 in words is "one million, thirty-four thousand, three hundred ninety-one".