8273407 has 4 divisors (see below), whose sum is σ = 8760096. Its totient is φ = 7786720.

The previous prime is 8273389. The next prime is 8273411. The reversal of 8273407 is 7043728.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8273407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8273437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243319 + ... + 243352.

It is an arithmetic number, because the mean of its divisors is an integer number (2190024).

Almost surely, 2^8273407 is an apocalyptic number.

8273407 is a deficient number, since it is larger than the sum of its proper divisors (486689).

8273407 is a wasteful number, since it uses less digits than its factorization.

8273407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486688.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 8273407 is about 2876.3530729033. The cubic root of 8273407 is about 202.2529181735.

The spelling of 8273407 in words is "eight million, two hundred seventy-three thousand, four hundred seven".