1097847873 has 24 divisors (see below), whose sum is σ = 1670572800. Its totient is φ = 692825184.

The previous prime is 1097847871. The next prime is 1097847893. The reversal of 1097847873 is 3787487901.

1097847873 is a `hidden beast` number, since 10 + 97 + 8 + 478 + 73 = 666.

It is not a de Polignac number, because 1097847873 - 2¹ = 1097847871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1097847871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375943 + ... + 378851.

It is an arithmetic number, because the mean of its divisors is an integer number (69607200).

Almost surely, 2^1097847873 is an apocalyptic number.

It is an amenable number.

1097847873 is a deficient number, since it is larger than the sum of its proper divisors (572724927).

1097847873 is a wasteful number, since it uses less digits than its factorization.

1097847873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141 (or 5138 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The square root of 1097847873 is about 33133.7874834737. The cubic root of 1097847873 is about 1031.6064644499.

The spelling of 1097847873 in words is "one billion, ninety-seven million, eight hundred forty-seven thousand, eight hundred seventy-three".