1379917 has 8 divisors (see below), whose sum is σ = 1720512. Its totient is φ = 1075200.

The previous prime is 1379897. The next prime is 1379923. The reversal of 1379917 is 7199731.

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

It is not a de Polignac number, because 1379917 - 2¹⁵ = 1347149 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 (1379947) 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, 8884 + ... + 9037.

It is an arithmetic number, because the mean of its divisors is an integer number (215064).

2^1379917 is an apocalyptic number.

It is an amenable number.

1379917 is a deficient number, since it is larger than the sum of its proper divisors (340595).

1379917 is a wasteful number, since it uses less digits than its factorization.

1379917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939.

The product of its digits is 11907, while the sum is 37.

The square root of 1379917 is about 1174.6986847698. The cubic root of 1379917 is about 111.3313960563.

The spelling of 1379917 in words is "one million, three hundred seventy-nine thousand, nine hundred seventeen".