379861 has 4 divisors (see below), whose sum is σ = 383724. Its totient is φ = 376000.

The previous prime is 379859. The next prime is 379877. The reversal of 379861 is 168973.

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

It can be written as a sum of positive squares in 2 ways, for example, as 286225 + 93636 = 535^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 379861 - 2¹ = 379859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379811) 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, 1780 + ... + 1981.

It is an arithmetic number, because the mean of its divisors is an integer number (95931).

2³⁷⁹⁸⁶¹ is an apocalyptic number.

It is an amenable number.

379861 is a deficient number, since it is larger than the sum of its proper divisors (3863).

379861 is a wasteful number, since it uses less digits than its factorization.

379861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862.

The product of its digits is 9072, while the sum is 34.

The square root of 379861 is about 616.3286460972. The cubic root of 379861 is about 72.4227317894.

The spelling of 379861 in words is "three hundred seventy-nine thousand, eight hundred sixty-one".