1097397 has 12 divisors (see below), whose sum is σ = 1811680. Its totient is φ = 627048.

The previous prime is 1097381. The next prime is 1097413. The reversal of 1097397 is 7937901.

It is an interprime number because it is at equal distance from previous prime (1097381) and next prime (1097413).

It is not a de Polignac number, because 1097397 - 2⁴ = 1097381 is a prime.

It is a Duffinian number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 8647 + ... + 8772.

2^1097397 is an apocalyptic number.

It is an amenable number.

1097397 is a deficient number, since it is larger than the sum of its proper divisors (714283).

1097397 is a wasteful number, since it uses less digits than its factorization.

1097397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17432 (or 17429 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1097397 is about 1047.5671816165. The cubic root of 1097397 is about 103.1465222298.

It can be divided in two parts, 109739 and 7, that added together give a triangular number (109746 = T₄₆₈).

The spelling of 1097397 in words is "one million, ninety-seven thousand, three hundred ninety-seven".