421500893 has 8 divisors (see below), whose sum is σ = 474652416. Its totient is φ = 370821600.

The previous prime is 421500887. The next prime is 421500949. The reversal of 421500893 is 398005124.

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 421500893 - 2¹² = 421496797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421500803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617696 + ... + 618377.

It is an arithmetic number, because the mean of its divisors is an integer number (59331552).

Almost surely, 2^421500893 is an apocalyptic number.

It is an amenable number.

421500893 is a deficient number, since it is larger than the sum of its proper divisors (53151523).

421500893 is a wasteful number, since it uses less digits than its factorization.

421500893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236115.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 421500893 is about 20530.4869158040. The cubic root of 421500893 is about 749.7782414003.

The spelling of 421500893 in words is "four hundred twenty-one million, five hundred thousand, eight hundred ninety-three".