8212906 has 8 divisors (see below), whose sum is σ = 13267044. Its totient is φ = 3790560.

The previous prime is 8212901. The next prime is 8212907. The reversal of 8212906 is 6092128.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7338681 + 874225 = 2709^2 + 935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8212901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157915 + ... + 157966.

Almost surely, 2^8212906 is an apocalyptic number.

8212906 is a deficient number, since it is larger than the sum of its proper divisors (5054138).

8212906 is a wasteful number, since it uses less digits than its factorization.

8212906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315896.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8212906 is about 2865.8168120101. The cubic root of 8212906 is about 201.7587060996.

The spelling of 8212906 in words is "eight million, two hundred twelve thousand, nine hundred six".