8312919 has 4 divisors (see below), whose sum is σ = 11083896. Its totient is φ = 5541944.

The previous prime is 8312911. The next prime is 8312921. The reversal of 8312919 is 9192138.

8312919 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8312919 - 2³ = 8312911 is a prime.

It is a super-2 number, since 2×8312919² = 138209244601122, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8312919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8312911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385484 + ... + 1385489.

It is an arithmetic number, because the mean of its divisors is an integer number (2770974).

Almost surely, 2^8312919 is an apocalyptic number.

8312919 is a deficient number, since it is larger than the sum of its proper divisors (2770977).

8312919 is a wasteful number, since it uses less digits than its factorization.

8312919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770976.

The product of its digits is 3888, while the sum is 33.

The square root of 8312919 is about 2883.2133115675. The cubic root of 8312919 is about 202.5743790175.

The spelling of 8312919 in words is "eight million, three hundred twelve thousand, nine hundred nineteen".