8420763 has 24 divisors (see below), whose sum is σ = 12886128. Its totient is φ = 4872192.

The previous prime is 8420749. The next prime is 8420771. The reversal of 8420763 is 3670248.

8420763 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8420763 - 2¹⁶ = 8355227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8420763.

It is not an unprimeable number, because it can be changed into a prime (8420773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8131 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (536922).

Almost surely, 2^8420763 is an apocalyptic number.

8420763 is a deficient number, since it is larger than the sum of its proper divisors (4465365).

8420763 is a wasteful number, since it uses less digits than its factorization.

8420763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 8420763 is about 2901.8550963134. The cubic root of 8420763 is about 203.4466211540.

The spelling of 8420763 in words is "eight million, four hundred twenty thousand, seven hundred sixty-three".