1097871 has 8 divisors (see below), whose sum is σ = 1470000. Its totient is φ = 728832.

The previous prime is 1097869. The next prime is 1097879. The reversal of 1097871 is 1787901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1097871 - 2¹ = 1097869 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (183750).

2^1097871 is an apocalyptic number.

1097871 is a deficient number, since it is larger than the sum of its proper divisors (372129).

1097871 is a wasteful number, since it uses less digits than its factorization.

1097871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 1097871 is about 1047.7933956654. The cubic root of 1097871 is about 103.1613708257.

The spelling of 1097871 in words is "one million, ninety-seven thousand, eight hundred seventy-one".