3994907 has 8 divisors (see below), whose sum is σ = 4590816. Its totient is φ = 3405312.

The previous prime is 3994897. The next prime is 3994909. The reversal of 3994907 is 7094993.

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

It is a cyclic number.

It is not a de Polignac number, because 3994907 - 2⁴ = 3994891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994909) 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, 128 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (573852).

Almost surely, 2^3994907 is an apocalyptic number.

3994907 is a deficient number, since it is larger than the sum of its proper divisors (595909).

3994907 is a wasteful number, since it uses less digits than its factorization.

3994907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 3994907 is about 1998.7263444504. The cubic root of 3994907 is about 158.6727046365.

The spelling of 3994907 in words is "three million, nine hundred ninety-four thousand, nine hundred seven".