1379693 has 12 divisors (see below), whose sum is σ = 1650492. Its totient is φ = 1149120.

The previous prime is 1379681. The next prime is 1379699. The reversal of 1379693 is 3969731.

It can be written as a sum of positive squares in 2 ways, for example, as 499849 + 879844 = 707^2 + 938^2 .

It is not a de Polignac number, because 1379693 - 2⁶ = 1379629 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379699) 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 11 ways as a sum of consecutive naturals, for example, 1433 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (137541).

2^1379693 is an apocalyptic number.

It is an amenable number.

1379693 is a deficient number, since it is larger than the sum of its proper divisors (270799).

1379693 is an equidigital number, since it uses as much as digits as its factorization.

1379693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 805 counting only the distinct ones).

The product of its digits is 30618, while the sum is 38.

The square root of 1379693 is about 1174.6033373016. The cubic root of 1379693 is about 111.3253716403.

Adding to 1379693 its sum of digits (38), we get a palindrome (1379731).

The spelling of 1379693 in words is "one million, three hundred seventy-nine thousand, six hundred ninety-three".