421000675 has 12 divisors (see below), whose sum is σ = 522450936. Its totient is φ = 336536000.

The previous prime is 421000649. The next prime is 421000687. The reversal of 421000675 is 576000124.

It is not a de Polignac number, because 421000675 - 2²¹ = 418903523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29775 + ... + 41575.

It is an arithmetic number, because the mean of its divisors is an integer number (43537578).

Almost surely, 2^421000675 is an apocalyptic number.

421000675 is a deficient number, since it is larger than the sum of its proper divisors (101450261).

421000675 is a wasteful number, since it uses less digits than its factorization.

421000675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13238 (or 13233 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 421000675 is about 20518.3009774201. The cubic root of 421000675 is about 749.4815231397.

Adding to 421000675 its reverse (576000124), we get a palindrome (997000799).

The spelling of 421000675 in words is "four hundred twenty-one million, six hundred seventy-five", and thus it is an aban number.