1097371 has 4 divisors (see below), whose sum is σ = 1197144. Its totient is φ = 997600.

The previous prime is 1097359. The next prime is 1097377. The reversal of 1097371 is 1737901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1737901 = 11 ⋅157991.

It is a cyclic number.

It is not a de Polignac number, because 1097371 - 2⁹ = 1096859 is a prime.

It is a super-2 number, since 2×1097371² = 2408446223282, which contains 22 as substring.

It is a Duffinian number.

1097371 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1097377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49870 + ... + 49891.

It is an arithmetic number, because the mean of its divisors is an integer number (299286).

2^1097371 is an apocalyptic number.

1097371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1097371 is a deficient number, since it is larger than the sum of its proper divisors (99773).

1097371 is an equidigital number, since it uses as much as digits as its factorization.

1097371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99772.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 1097371 is about 1047.5547718377. The cubic root of 1097371 is about 103.1457076261.

It can be divided in two parts, 10 and 97371, that multiplied together give a triangular number (973710 = T₁₃₉₅).

The spelling of 1097371 in words is "one million, ninety-seven thousand, three hundred seventy-one".