8212919 has 16 divisors (see below), whose sum is σ = 9784320. Its totient is φ = 6795360.

The previous prime is 8212913. The next prime is 8212931. The reversal of 8212919 is 9192128.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8212919 is a prime.

It is a super-2 number, since 2×8212919² = 134904077001122, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10934 + ... + 11660.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^8212919 is an apocalyptic number.

8212919 is a deficient number, since it is larger than the sum of its proper divisors (1571401).

8212919 is a wasteful number, since it uses less digits than its factorization.

8212919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its digits is 2592, while the sum is 32.

The square root of 8212919 is about 2865.8190801235. The cubic root of 8212919 is about 201.7588125525.

The spelling of 8212919 in words is "eight million, two hundred twelve thousand, nine hundred nineteen".