3515961 has 8 divisors (see below), whose sum is σ = 4705984. Its totient is φ = 2334960.

The previous prime is 3515933. The next prime is 3515977. The reversal of 3515961 is 1695153.

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

It is not a de Polignac number, because 3515961 - 2⁷ = 3515833 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3515761) 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, 1285 + ... + 2946.

It is an arithmetic number, because the mean of its divisors is an integer number (588248).

Almost surely, 2^3515961 is an apocalyptic number.

It is an amenable number.

3515961 is a deficient number, since it is larger than the sum of its proper divisors (1190023).

3515961 is a wasteful number, since it uses less digits than its factorization.

3515961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its digits is 4050, while the sum is 30.

The square root of 3515961 is about 1875.0895978593. The cubic root of 3515961 is about 152.0598938710.

The spelling of 3515961 in words is "three million, five hundred fifteen thousand, nine hundred sixty-one".