1097644 has 12 divisors (see below), whose sum is σ = 1935864. Its totient is φ = 544544.

The previous prime is 1097633. The next prime is 1097651. The reversal of 1097644 is 4467901.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (161322).

2^1097644 is an apocalyptic number.

It is an amenable number.

1097644 is a deficient number, since it is larger than the sum of its proper divisors (838220).

1097644 is a wasteful number, since it uses less digits than its factorization.

1097644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1097644 is about 1047.6850671838. The cubic root of 1097644 is about 103.1542603226.

The spelling of 1097644 in words is "one million, ninety-seven thousand, six hundred forty-four".