478862761 has 8 divisors (see below), whose sum is σ = 533481480. Its totient is φ = 426784512.

The previous prime is 478862753. The next prime is 478862777. The reversal of 478862761 is 167268874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 150528361 + 328334400 = 12269^2 + 18120^2 .

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 478862761 - 2³ = 478862753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478862711) 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, 634720 + ... + 635473.

It is an arithmetic number, because the mean of its divisors is an integer number (66685185).

Almost surely, 2^478862761 is an apocalyptic number.

It is an amenable number.

478862761 is a deficient number, since it is larger than the sum of its proper divisors (54618719).

478862761 is a wasteful number, since it uses less digits than its factorization.

478862761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270235.

The product of its digits is 903168, while the sum is 49.

The square root of 478862761 is about 21882.9330986502. The cubic root of 478862761 is about 782.3546864461.

The spelling of 478862761 in words is "four hundred seventy-eight million, eight hundred sixty-two thousand, seven hundred sixty-one".