3961115 has 4 divisors (see below), whose sum is σ = 4753344. Its totient is φ = 3168888.

The previous prime is 3961057. The next prime is 3961121. The reversal of 3961115 is 5111693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3961115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396107 + ... + 396116.

It is an arithmetic number, because the mean of its divisors is an integer number (1188336).

Almost surely, 2^3961115 is an apocalyptic number.

3961115 is a deficient number, since it is larger than the sum of its proper divisors (792229).

3961115 is an equidigital number, since it uses as much as digits as its factorization.

3961115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792228.

The product of its digits is 810, while the sum is 26.

The square root of 3961115 is about 1990.2550087866. The cubic root of 3961115 is about 158.2240452348.

The spelling of 3961115 in words is "three million, nine hundred sixty-one thousand, one hundred fifteen".