379871705 has 16 divisors (see below), whose sum is σ = 466328784. Its totient is φ = 296974080.

The previous prime is 379871689. The next prime is 379871717. The reversal of 379871705 is 507178973.

It can be written as a sum of positive squares in 8 ways, for example, as 117852736 + 262018969 = 10856^2 + 16187^2 .

It is not a de Polignac number, because 379871705 - 2⁴ = 379871689 is a prime.

It is a Smith number, since the sum of its digits (47) 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.

It is a self number, because there is not a number n which added to its sum of digits gives 379871705.

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, 43919 + ... + 51851.

It is an arithmetic number, because the mean of its divisors is an integer number (29145549).

Almost surely, 2^379871705 is an apocalyptic number.

It is an amenable number.

379871705 is a deficient number, since it is larger than the sum of its proper divisors (86457079).

379871705 is a wasteful number, since it uses less digits than its factorization.

379871705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 379871705 is about 19490.2977145040. The cubic root of 379871705 is about 724.2341210675.

The spelling of 379871705 in words is "three hundred seventy-nine million, eight hundred seventy-one thousand, seven hundred five".