378311 has 4 divisors (see below), whose sum is σ = 381000. Its totient is φ = 375624.

The previous prime is 378289. The next prime is 378317. The reversal of 378311 is 113873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113873 = 23 ⋅4951.

It is a cyclic number.

It is not a de Polignac number, because 378311 - 2¹⁰ = 377287 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 (378317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (95250).

2³⁷⁸³¹¹ is an apocalyptic number.

378311 is a deficient number, since it is larger than the sum of its proper divisors (2689).

378311 is a wasteful number, since it uses less digits than its factorization.

378311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688.

The product of its digits is 504, while the sum is 23.

The square root of 378311 is about 615.0699147251. The cubic root of 378311 is about 72.3240919669.

The spelling of 378311 in words is "three hundred seventy-eight thousand, three hundred eleven".