1097442847 has 4 divisors (see below), whose sum is σ = 1107511240. Its totient is φ = 1087374456.

The previous prime is 1097442823. The next prime is 1097442851. The reversal of 1097442847 is 7482447901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1097442847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1097442797 and 1097442806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097442877) 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, 5034033 + ... + 5034250.

It is an arithmetic number, because the mean of its divisors is an integer number (276877810).

Almost surely, 2^1097442847 is an apocalyptic number.

1097442847 is a deficient number, since it is larger than the sum of its proper divisors (10068393).

1097442847 is a wasteful number, since it uses less digits than its factorization.

1097442847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068392.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 1097442847 is about 33127.6749410519. The cubic root of 1097442847 is about 1031.4795862659.

The spelling of 1097442847 in words is "one billion, ninety-seven million, four hundred forty-two thousand, eight hundred forty-seven".