3994415 has 8 divisors (see below), whose sum is σ = 4812048. Its totient is φ = 3183040.

The previous prime is 3994411. The next prime is 3994421. The reversal of 3994415 is 5144993.

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

It is not a de Polignac number, because 3994415 - 2² = 3994411 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 (3994411) 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, 17 + ... + 2826.

It is an arithmetic number, because the mean of its divisors is an integer number (601506).

Almost surely, 2^3994415 is an apocalyptic number.

3994415 is a deficient number, since it is larger than the sum of its proper divisors (817633).

3994415 is a wasteful number, since it uses less digits than its factorization.

3994415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129.

The product of its digits is 19440, while the sum is 35.

The square root of 3994415 is about 1998.6032622809. The cubic root of 3994415 is about 158.6661904944. Note that the first 3 decimals are identical.

The spelling of 3994415 in words is "three million, nine hundred ninety-four thousand, four hundred fifteen".