378673 has 4 divisors (see below), whose sum is σ = 382320. Its totient is φ = 375028.

The previous prime is 378671. The next prime is 378683. The reversal of 378673 is 376873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378673 - 2¹ = 378671 is a prime.

It is a Duffinian number.

378673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (378671) 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, 1663 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (95580).

2³⁷⁸⁶⁷³ is an apocalyptic number.

It is an amenable number.

378673 is a deficient number, since it is larger than the sum of its proper divisors (3647).

378673 is a wasteful number, since it uses less digits than its factorization.

378673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646.

The product of its digits is 21168, while the sum is 34.

The square root of 378673 is about 615.3641198510. The cubic root of 378673 is about 72.3471532180.

The spelling of 378673 in words is "three hundred seventy-eight thousand, six hundred seventy-three".