477398247 has 8 divisors (see below), whose sum is σ = 636631920. Its totient is φ = 318215040.

The previous prime is 477398239. The next prime is 477398269. The reversal of 477398247 is 742893774.

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

It is not a de Polignac number, because 477398247 - 2³ = 477398239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 477398247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477398227) 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, 31279 + ... + 43967.

It is an arithmetic number, because the mean of its divisors is an integer number (79578990).

Almost surely, 2^477398247 is an apocalyptic number.

477398247 is a deficient number, since it is larger than the sum of its proper divisors (159233673).

477398247 is a wasteful number, since it uses less digits than its factorization.

477398247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25233.

The product of its digits is 2370816, while the sum is 51.

The square root of 477398247 is about 21849.4450043931. The cubic root of 477398247 is about 781.5563091828.

The spelling of 477398247 in words is "four hundred seventy-seven million, three hundred ninety-eight thousand, two hundred forty-seven".