421766086 has 16 divisors (see below), whose sum is σ = 727467264. Its totient is φ = 179646984.

The previous prime is 421766063. The next prime is 421766087. The reversal of 421766086 is 680667124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421766087) 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, 90130 + ... + 94693.

It is an arithmetic number, because the mean of its divisors is an integer number (45466704).

Almost surely, 2^421766086 is an apocalyptic number.

421766086 is a deficient number, since it is larger than the sum of its proper divisors (305701178).

421766086 is a wasteful number, since it uses less digits than its factorization.

421766086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184995.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 421766086 is about 20536.9444173178. The cubic root of 421766086 is about 749.9354528154.

The spelling of 421766086 in words is "four hundred twenty-one million, seven hundred sixty-six thousand, eighty-six".