379865 has 16 divisors (see below), whose sum is σ = 498960. Its totient is φ = 276480.

The previous prime is 379859. The next prime is 379877. The reversal of 379865 is 568973.

It can be written as a sum of positive squares in 8 ways, for example, as 4096 + 375769 = 64^2 + 613^2 .

It is not a de Polignac number, because 379865 - 2⁴ = 379849 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3431 + ... + 3539.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

2³⁷⁹⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

379865 is a deficient number, since it is larger than the sum of its proper divisors (119095).

379865 is a wasteful number, since it uses less digits than its factorization.

379865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172.

The product of its digits is 45360, while the sum is 38.

The square root of 379865 is about 616.3318911106. The cubic root of 379865 is about 72.4229859964.

The spelling of 379865 in words is "three hundred seventy-nine thousand, eight hundred sixty-five".