3961705 has 8 divisors (see below), whose sum is σ = 5186304. Its totient is φ = 2881200.

The previous prime is 3961691. The next prime is 3961721. The reversal of 3961705 is 5071693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3961705 - 2⁹ = 3961193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35961 + ... + 36070.

It is an arithmetic number, because the mean of its divisors is an integer number (648288).

Almost surely, 2^3961705 is an apocalyptic number.

It is an amenable number.

3961705 is a deficient number, since it is larger than the sum of its proper divisors (1224599).

3961705 is a wasteful number, since it uses less digits than its factorization.

3961705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72047.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 3961705 is about 1990.4032254797. The cubic root of 3961705 is about 158.2319005611.

The spelling of 3961705 in words is "three million, nine hundred sixty-one thousand, seven hundred five".