8273945 has 4 divisors (see below), whose sum is σ = 9928740. Its totient is φ = 6619152.

The previous prime is 8273933. The next prime is 8273953. The reversal of 8273945 is 5493728.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4618201 + 3655744 = 2149^2 + 1912^2 .

It is a cyclic number.

It is not a de Polignac number, because 8273945 - 2²² = 4079641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8273899 and 8273908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827390 + ... + 827399.

It is an arithmetic number, because the mean of its divisors is an integer number (2482185).

Almost surely, 2^8273945 is an apocalyptic number.

It is an amenable number.

8273945 is a deficient number, since it is larger than the sum of its proper divisors (1654795).

8273945 is a wasteful number, since it uses less digits than its factorization.

8273945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654794.

The product of its digits is 60480, while the sum is 38.

The square root of 8273945 is about 2876.4465925861. The cubic root of 8273945 is about 202.2573020874.

The spelling of 8273945 in words is "eight million, two hundred seventy-three thousand, nine hundred forty-five".