1097992 has 24 divisors (see below), whose sum is σ = 2395710. Its totient is φ = 470400.

The previous prime is 1097983. The next prime is 1098017. The reversal of 1097992 is 2997901.

It can be written as a sum of positive squares in only one way, i.e., 933156 + 164836 = 966^2 + 406^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1009 + ... + 1792.

2^1097992 is an apocalyptic number.

It is an amenable number.

1097992 is an abundant number, since it is smaller than the sum of its proper divisors (1297718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097992 is a wasteful number, since it uses less digits than its factorization.

1097992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 1097992 is about 1047.8511344652. The cubic root of 1097992 is about 103.1651606053.

The spelling of 1097992 in words is "one million, ninety-seven thousand, nine hundred ninety-two".