421702086 has 32 divisors (see below), whose sum is σ = 921086208. Its totient is φ = 127925280.

The previous prime is 421702081. The next prime is 421702109. The reversal of 421702086 is 680207124.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421702081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32536 + ... + 43611.

It is an arithmetic number, because the mean of its divisors is an integer number (28783944).

Almost surely, 2^421702086 is an apocalyptic number.

421702086 is an abundant number, since it is smaller than the sum of its proper divisors (499384122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421702086 is a wasteful number, since it uses less digits than its factorization.

421702086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76236.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 421702086 is about 20535.3861906710. The cubic root of 421702086 is about 749.8975184418.

The spelling of 421702086 in words is "four hundred twenty-one million, seven hundred two thousand, eighty-six".