8364478 has 4 divisors (see below), whose sum is σ = 12546720. Its totient is φ = 4182238.

The previous prime is 8364457. The next prime is 8364509. The reversal of 8364478 is 8744638.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8364478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2091118 + ... + 2091121.

It is an arithmetic number, because the mean of its divisors is an integer number (3136680).

Almost surely, 2^8364478 is an apocalyptic number.

8364478 is a deficient number, since it is larger than the sum of its proper divisors (4182242).

8364478 is a wasteful number, since it uses less digits than its factorization.

8364478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182241.

The product of its digits is 129024, while the sum is 40.

The square root of 8364478 is about 2892.1407296326. The cubic root of 8364478 is about 202.9923233930.

The spelling of 8364478 in words is "eight million, three hundred sixty-four thousand, four hundred seventy-eight".