478820761 has 8 divisors (see below), whose sum is σ = 495051264. Its totient is φ = 462639360.

The previous prime is 478820753. The next prime is 478820777. The reversal of 478820761 is 167028874.

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

It is a cyclic number.

It is not a de Polignac number, because 478820761 - 2³ = 478820753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478820791) 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, 8121 + ... + 31993.

It is an arithmetic number, because the mean of its divisors is an integer number (61881408).

Almost surely, 2^478820761 is an apocalyptic number.

It is an amenable number.

478820761 is a deficient number, since it is larger than the sum of its proper divisors (16230503).

478820761 is a wasteful number, since it uses less digits than its factorization.

478820761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24551.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 478820761 is about 21881.9734256305. The cubic root of 478820761 is about 782.3318129075.

The spelling of 478820761 in words is "four hundred seventy-eight million, eight hundred twenty thousand, seven hundred sixty-one".