376391 has 4 divisors (see below), whose sum is σ = 389400. Its totient is φ = 363384.

The previous prime is 376373. The next prime is 376393. The reversal of 376391 is 193673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193673 = 293 ⋅661.

It is a cyclic number.

It is not a de Polignac number, because 376391 - 2¹⁰ = 375367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 12979 = 376391 / (3 + 7 + 6 + 3 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376393) 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, 6461 + ... + 6518.

It is an arithmetic number, because the mean of its divisors is an integer number (97350).

2³⁷⁶³⁹¹ is an apocalyptic number.

376391 is a deficient number, since it is larger than the sum of its proper divisors (13009).

376391 is a wasteful number, since it uses less digits than its factorization.

376391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13008.

The product of its digits is 3402, while the sum is 29.

The square root of 376391 is about 613.5071311729. The cubic root of 376391 is about 72.2015315702.

It can be divided in two parts, 376 and 391, that added together give a palindrome (767).

The spelling of 376391 in words is "three hundred seventy-six thousand, three hundred ninety-one".