3915961 has 8 divisors (see below), whose sum is σ = 4487360. Its totient is φ = 3347568.

The previous prime is 3915959. The next prime is 3915971. The reversal of 3915961 is 1695193.

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

It is not a de Polignac number, because 3915961 - 2¹ = 3915959 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3915931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4795 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (560920).

Almost surely, 2^3915961 is an apocalyptic number.

It is an amenable number.

3915961 is a deficient number, since it is larger than the sum of its proper divisors (571399).

3915961 is an equidigital number, since it uses as much as digits as its factorization.

3915961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503.

The product of its digits is 7290, while the sum is 34.

The square root of 3915961 is about 1978.8787229136. The cubic root of 3915961 is about 157.6205309000.

The spelling of 3915961 in words is "three million, nine hundred fifteen thousand, nine hundred sixty-one".