478353831 has 8 divisors (see below), whose sum is σ = 639844080. Its totient is φ = 317883072.

The previous prime is 478353809. The next prime is 478353857. The reversal of 478353831 is 138353874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 478353831 - 2¹³ = 478345639 is a prime.

It is a super-2 number, since 2×478353831² = 457644775264753122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478353331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253776 + ... + 255653.

It is an arithmetic number, because the mean of its divisors is an integer number (79980510).

Almost surely, 2^478353831 is an apocalyptic number.

478353831 is a deficient number, since it is larger than the sum of its proper divisors (161490249).

478353831 is a wasteful number, since it uses less digits than its factorization.

478353831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509745.

The product of its digits is 241920, while the sum is 42.

The square root of 478353831 is about 21871.3015387745. The cubic root of 478353831 is about 782.0774289233.

The spelling of 478353831 in words is "four hundred seventy-eight million, three hundred fifty-three thousand, eight hundred thirty-one".