403996 has 6 divisors (see below), whose sum is σ = 707000. Its totient is φ = 201996.

The previous prime is 403993. The next prime is 404009. The reversal of 403996 is 699304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50496 + ... + 50503.

2⁴⁰³⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

403996 is a deficient number, since it is larger than the sum of its proper divisors (303004).

403996 is a wasteful number, since it uses less digits than its factorization.

403996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101003 (or 101001 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 403996 is about 635.6067966912. The cubic root of 403996 is about 73.9251739381.

The spelling of 403996 in words is "four hundred three thousand, nine hundred ninety-six".