8403964 has 6 divisors (see below), whose sum is σ = 14706944. Its totient is φ = 4201980.

The previous prime is 8403959. The next prime is 8403977. The reversal of 8403964 is 4693048.

8403964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8403964² = 141253221826592, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050492 + ... + 1050499.

Almost surely, 2^8403964 is an apocalyptic number.

It is an amenable number.

8403964 is a deficient number, since it is larger than the sum of its proper divisors (6302980).

8403964 is a wasteful number, since it uses less digits than its factorization.

8403964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100995 (or 2100993 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 8403964 is about 2898.9591235476. The cubic root of 8403964 is about 203.3112424864.

The spelling of 8403964 in words is "eight million, four hundred three thousand, nine hundred sixty-four".