1097961 has 8 divisors (see below), whose sum is σ = 1475040. Its totient is φ = 726432.

The previous prime is 1097947. The next prime is 1097983. The reversal of 1097961 is 1697901.

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

It is not a de Polignac number, because 1097961 - 2⁶ = 1097897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1097461) 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, 900 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (184380).

2^1097961 is an apocalyptic number.

It is an amenable number.

1097961 is a deficient number, since it is larger than the sum of its proper divisors (377079).

1097961 is a wasteful number, since it uses less digits than its factorization.

1097961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 1097961 is about 1047.8363421833. The cubic root of 1097961 is about 103.1641896966.

The spelling of 1097961 in words is "one million, ninety-seven thousand, nine hundred sixty-one".