8463940 has 24 divisors (see below), whose sum is σ = 18388440. Its totient is φ = 3268608.

The previous prime is 8463937. The next prime is 8463947. The reversal of 8463940 is 493648.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 8398404 = 256^2 + 2898^2 .

It is a d-powerful number, because it can be written as 8⁷ + 4³ + 6⁶ + 3¹³ + 9⁶ + 4¹¹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 8463896 and 8463905.

It is not an unprimeable number, because it can be changed into a prime (8463947) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6717 + ... + 7876.

It is an arithmetic number, because the mean of its divisors is an integer number (766185).

Almost surely, 2^8463940 is an apocalyptic number.

It is an amenable number.

8463940 is an abundant number, since it is smaller than the sum of its proper divisors (9924500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8463940 is a wasteful number, since it uses less digits than its factorization.

8463940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14631 (or 14629 counting only the distinct ones).

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

The square root of 8463940 is about 2909.2851355617. The cubic root of 8463940 is about 203.7937489957.

The spelling of 8463940 in words is "eight million, four hundred sixty-three thousand, nine hundred forty".