1371697 has 6 divisors (see below), whose sum is σ = 1434482. Its totient is φ = 1311552.

The previous prime is 1371683. The next prime is 1371703. The reversal of 1371697 is 7961731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 152881 = 1104^2 + 391^2 .

It is not a de Polignac number, because 1371697 - 2⁷ = 1371569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1371607) 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 5 ways as a sum of consecutive naturals, for example, 768 + ... + 1825.

2^1371697 is an apocalyptic number.

It is an amenable number.

1371697 is a deficient number, since it is larger than the sum of its proper divisors (62785).

1371697 is an equidigital number, since it uses as much as digits as its factorization.

1371697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639 (or 2616 counting only the distinct ones).

The product of its digits is 7938, while the sum is 34.

The square root of 1371697 is about 1171.1946891956. The cubic root of 1371697 is about 111.1098930607.

Adding to 1371697 its sum of digits (34), we get a palindrome (1371731).

The spelling of 1371697 in words is "one million, three hundred seventy-one thousand, six hundred ninety-seven".