1377399 has 8 divisors (see below), whose sum is σ = 1886320. Its totient is φ = 893376.

The previous prime is 1377379. The next prime is 1377403. The reversal of 1377399 is 9937731.

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

It is not a de Polignac number, because 1377399 - 2¹⁷ = 1246327 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 (1377349) 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, 6094 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (235790).

2^1377399 is an apocalyptic number.

1377399 is a deficient number, since it is larger than the sum of its proper divisors (508921).

1377399 is a wasteful number, since it uses less digits than its factorization.

1377399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449.

The product of its digits is 35721, while the sum is 39.

The square root of 1377399 is about 1173.6264311952. The cubic root of 1377399 is about 111.2636375993.

The spelling of 1377399 in words is "one million, three hundred seventy-seven thousand, three hundred ninety-nine".