1378117 has 8 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 1263792.

The previous prime is 1378103. The next prime is 1378129. The reversal of 1378117 is 7118731.

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 1378117 - 2¹⁵ = 1345349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378147) 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, 2718 + ... + 3184.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

2^1378117 is an apocalyptic number.

It is an amenable number.

1378117 is a deficient number, since it is larger than the sum of its proper divisors (115739).

1378117 is a wasteful number, since it uses less digits than its factorization.

1378117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its digits is 1176, while the sum is 28.

The square root of 1378117 is about 1173.9322808408. The cubic root of 1378117 is about 111.2829671266.

The spelling of 1378117 in words is "one million, three hundred seventy-eight thousand, one hundred seventeen".