478627823 has 4 divisors (see below), whose sum is σ = 479877888. Its totient is φ = 477377760.

The previous prime is 478627811. The next prime is 478627873. The reversal of 478627823 is 328726874.

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 478627823 - 2⁶ = 478627759 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 (478627873) 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, 624458 + ... + 625223.

It is an arithmetic number, because the mean of its divisors is an integer number (119969472).

Almost surely, 2^478627823 is an apocalyptic number.

478627823 is a deficient number, since it is larger than the sum of its proper divisors (1250065).

478627823 is a wasteful number, since it uses less digits than its factorization.

478627823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250064.

The product of its digits is 903168, while the sum is 47.

The square root of 478627823 is about 21877.5643754052. The cubic root of 478627823 is about 782.2267201283.

The spelling of 478627823 in words is "four hundred seventy-eight million, six hundred twenty-seven thousand, eight hundred twenty-three".