421061371 has 4 divisors (see below), whose sum is σ = 424996632. Its totient is φ = 417126112.

The previous prime is 421061363. The next prime is 421061387. The reversal of 421061371 is 173160124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421061371 - 2³ = 421061363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421061341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967470 + ... + 1967683.

It is an arithmetic number, because the mean of its divisors is an integer number (106249158).

Almost surely, 2^421061371 is an apocalyptic number.

421061371 is a deficient number, since it is larger than the sum of its proper divisors (3935261).

421061371 is a wasteful number, since it uses less digits than its factorization.

421061371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935260.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 421061371 is about 20519.7799939473. The cubic root of 421061371 is about 749.5175391901.

The spelling of 421061371 in words is "four hundred twenty-one million, sixty-one thousand, three hundred seventy-one".