8212563 has 8 divisors (see below), whose sum is σ = 12166800. Its totient is φ = 5475024.

The previous prime is 8212553. The next prime is 8212583. The reversal of 8212563 is 3652128.

It is not a de Polignac number, because 8212563 - 2¹⁸ = 7950419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 304169 = 8212563 / (8 + 2 + 1 + 2 + 5 + 6 + 3).

It is not an unprimeable number, because it can be changed into a prime (8212553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152058 + ... + 152111.

It is an arithmetic number, because the mean of its divisors is an integer number (1520850).

Almost surely, 2^8212563 is an apocalyptic number.

8212563 is a deficient number, since it is larger than the sum of its proper divisors (3954237).

8212563 is a wasteful number, since it uses less digits than its factorization.

8212563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304178 (or 304172 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 8212563 is about 2865.7569680627. The cubic root of 8212563 is about 201.7558973415.

The spelling of 8212563 in words is "eight million, two hundred twelve thousand, five hundred sixty-three".