1397166 has 8 divisors (see below), whose sum is σ = 2794344. Its totient is φ = 465720.

The previous prime is 1397161. The next prime is 1397167. The reversal of 1397166 is 6617931.

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

1397166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116425 + ... + 116436.

It is an arithmetic number, because the mean of its divisors is an integer number (349293).

2^1397166 is an apocalyptic number.

1397166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397166 is a wasteful number, since it uses less digits than its factorization.

1397166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232866.

The product of its digits is 6804, while the sum is 33.

The square root of 1397166 is about 1182.0177663639. The cubic root of 1397166 is about 111.7933583483.

It can be divided in two parts, 13 and 97166, that added together give a palindrome (97179).

The spelling of 1397166 in words is "one million, three hundred ninety-seven thousand, one hundred sixty-six".