8478743 has 16 divisors (see below), whose sum is σ = 10891776. Its totient is φ = 6415200.

The previous prime is 8478739. The next prime is 8478751. The reversal of 8478743 is 3478748.

It is a cyclic number.

It is not a de Polignac number, because 8478743 - 2² = 8478739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8478743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8472743) 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, 68 + ... + 4118.

It is an arithmetic number, because the mean of its divisors is an integer number (680736).

Almost surely, 2^8478743 is an apocalyptic number.

8478743 is a deficient number, since it is larger than the sum of its proper divisors (2413033).

8478743 is a wasteful number, since it uses less digits than its factorization.

8478743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094.

The product of its digits is 150528, while the sum is 41.

The square root of 8478743 is about 2911.8281199274. The cubic root of 8478743 is about 203.9124880957.

The spelling of 8478743 in words is "eight million, four hundred seventy-eight thousand, seven hundred forty-three".