1197609 has 12 divisors (see below), whose sum is σ = 1857744. Its totient is φ = 684264.

The previous prime is 1197601. The next prime is 1197617. The reversal of 1197609 is 9067911.

It is an interprime number because it is at equal distance from previous prime (1197601) and next prime (1197617).

It is not a de Polignac number, because 1197609 - 2³ = 1197601 is a prime.

1197609 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1197609.

It is not an unprimeable number, because it can be changed into a prime (1197601) 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, 3927 + ... + 4220.

It is an arithmetic number, because the mean of its divisors is an integer number (154812).

2^1197609 is an apocalyptic number.

It is an amenable number.

1197609 is a deficient number, since it is larger than the sum of its proper divisors (660135).

1197609 is an equidigital number, since it uses as much as digits as its factorization.

1197609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 8157 counting only the distinct ones).

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

The square root of 1197609 is about 1094.3532336499. The cubic root of 1197609 is about 106.1952317506.

The spelling of 1197609 in words is "one million, one hundred ninety-seven thousand, six hundred nine".