478606531 has 8 divisors (see below), whose sum is σ = 515788560. Its totient is φ = 441476832.

The previous prime is 478606529. The next prime is 478606543. The reversal of 478606531 is 135606874.

It is a happy number.

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 478606531 - 2¹ = 478606529 is a prime.

It is a super-2 number, since 2×478606531² = 458128423031707922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478606501) 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, 7080 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (64473570).

Almost surely, 2^478606531 is an apocalyptic number.

478606531 is a deficient number, since it is larger than the sum of its proper divisors (37182029).

478606531 is a wasteful number, since it uses less digits than its factorization.

478606531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26165.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 478606531 is about 21877.0777527530. The cubic root of 478606531 is about 782.2151207063.

The spelling of 478606531 in words is "four hundred seventy-eight million, six hundred six thousand, five hundred thirty-one".