1379617 has 8 divisors (see below), whose sum is σ = 1443240. Its totient is φ = 1317120.

The previous prime is 1379603. The next prime is 1379621. The reversal of 1379617 is 7169731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 104976 + 1274641 = 324^2 + 1129^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1379617 - 2⁷ = 1379489 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 (1379657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3067 + ... + 3487.

It is an arithmetic number, because the mean of its divisors is an integer number (180405).

2^1379617 is an apocalyptic number.

It is an amenable number.

1379617 is a deficient number, since it is larger than the sum of its proper divisors (63623).

1379617 is a wasteful number, since it uses less digits than its factorization.

1379617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

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

The square root of 1379617 is about 1174.5709855092. The cubic root of 1379617 is about 111.3233274939.

The spelling of 1379617 in words is "one million, three hundred seventy-nine thousand, six hundred seventeen".