8400956 has 6 divisors (see below), whose sum is σ = 14701680. Its totient is φ = 4200476.

The previous prime is 8400943. The next prime is 8400967. The reversal of 8400956 is 6590048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050116 + ... + 1050123.

It is an arithmetic number, because the mean of its divisors is an integer number (2450280).

Almost surely, 2^8400956 is an apocalyptic number.

It is an amenable number.

8400956 is a deficient number, since it is larger than the sum of its proper divisors (6300724).

8400956 is a wasteful number, since it uses less digits than its factorization.

8400956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100243 (or 2100241 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8400956 is about 2898.4402702143. The cubic root of 8400956 is about 203.2869827761.

The spelling of 8400956 in words is "eight million, four hundred thousand, nine hundred fifty-six".