3956415 has 8 divisors (see below), whose sum is σ = 6330288. Its totient is φ = 2110080.

The previous prime is 3956401. The next prime is 3956419. The reversal of 3956415 is 5146593.

It is a happy number.

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

It is not a de Polignac number, because 3956415 - 2⁷ = 3956287 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956419) 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, 131866 + ... + 131895.

It is an arithmetic number, because the mean of its divisors is an integer number (791286).

Almost surely, 2^3956415 is an apocalyptic number.

3956415 is a deficient number, since it is larger than the sum of its proper divisors (2373873).

3956415 is a wasteful number, since it uses less digits than its factorization.

3956415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263769.

The product of its digits is 16200, while the sum is 33.

The square root of 3956415 is about 1989.0739051126. The cubic root of 3956415 is about 158.1614410328.

It can be divided in two parts, 3956 and 415, that added together give a triangular number (4371 = T₉₃).

The spelling of 3956415 in words is "three million, nine hundred fifty-six thousand, four hundred fifteen".