1097211 has 8 divisors (see below), whose sum is σ = 1467904. Its totient is φ = 729000.

The previous prime is 1097209. The next prime is 1097221. The reversal of 1097211 is 1127901.

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

It is not a de Polignac number, because 1097211 - 2¹ = 1097209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097221) 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, 1086 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (183488).

2^1097211 is an apocalyptic number.

1097211 is a deficient number, since it is larger than the sum of its proper divisors (370693).

1097211 is an equidigital number, since it uses as much as digits as its factorization.

1097211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 1097211 is about 1047.4784007320. The cubic root of 1097211 is about 103.1406943974.

The spelling of 1097211 in words is "one million, ninety-seven thousand, two hundred eleven".