1378367 has 4 divisors (see below), whose sum is σ = 1438320. Its totient is φ = 1318416.

The previous prime is 1378339. The next prime is 1378373. The reversal of 1378367 is 7638731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1378367 - 2¹² = 1374271 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁸ + 7⁵ + 8 + 3¹² + 6 + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29942 + ... + 29987.

It is an arithmetic number, because the mean of its divisors is an integer number (359580).

2^1378367 is an apocalyptic number.

1378367 is a deficient number, since it is larger than the sum of its proper divisors (59953).

1378367 is an equidigital number, since it uses as much as digits as its factorization.

1378367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59952.

The product of its digits is 21168, while the sum is 35.

The square root of 1378367 is about 1174.0387557487. The cubic root of 1378367 is about 111.2896958876.

The spelling of 1378367 in words is "one million, three hundred seventy-eight thousand, three hundred sixty-seven".