1097844685 has 8 divisors (see below), whose sum is σ = 1505615616. Its totient is φ = 752807760.

The previous prime is 1097844673. The next prime is 1097844689. The reversal of 1097844685 is 5864487901.

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

It is not a de Polignac number, because 1097844685 - 2⁷ = 1097844557 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 (1097844689) 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, 15683461 + ... + 15683530.

It is an arithmetic number, because the mean of its divisors is an integer number (188201952).

Almost surely, 2^1097844685 is an apocalyptic number.

It is an amenable number.

1097844685 is a deficient number, since it is larger than the sum of its proper divisors (407770931).

1097844685 is an equidigital number, since it uses as much as digits as its factorization.

1097844685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31367003.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 1097844685 is about 33133.7393754463. The cubic root of 1097844685 is about 1031.6054659009.

The spelling of 1097844685 in words is "one billion, ninety-seven million, eight hundred forty-four thousand, six hundred eighty-five".