378211 has 4 divisors (see below), whose sum is σ = 381672. Its totient is φ = 374752.

The previous prime is 378193. The next prime is 378223. The reversal of 378211 is 112873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112873 = 41 ⋅2753.

It is a cyclic number.

It is not a de Polignac number, because 378211 - 2⁵ = 378179 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

378211 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (378241) 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, 1561 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (95418).

2³⁷⁸²¹¹ is an apocalyptic number.

378211 is a deficient number, since it is larger than the sum of its proper divisors (3461).

378211 is a wasteful number, since it uses less digits than its factorization.

378211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460.

The product of its digits is 336, while the sum is 22.

The square root of 378211 is about 614.9886177808. The cubic root of 378211 is about 72.3177188624.

The spelling of 378211 in words is "three hundred seventy-eight thousand, two hundred eleven".