8216770 has 8 divisors (see below), whose sum is σ = 14790204. Its totient is φ = 3286704.

The previous prime is 8216743. The next prime is 8216777. The reversal of 8216770 is 776128.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7546009 + 670761 = 2747^2 + 819^2 .

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 (8216777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410829 + ... + 410848.

Almost surely, 2^8216770 is an apocalyptic number.

8216770 is a deficient number, since it is larger than the sum of its proper divisors (6573434).

8216770 is a wasteful number, since it uses less digits than its factorization.

8216770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821684.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 8216770 is about 2866.4908860835. The cubic root of 8216770 is about 201.7903422185.

The spelling of 8216770 in words is "eight million, two hundred sixteen thousand, seven hundred seventy".