421162387 has 4 divisors (see below), whose sum is σ = 421274896. Its totient is φ = 421049880.

The previous prime is 421162367. The next prime is 421162393. The reversal of 421162387 is 783261124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421162387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421162367) 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, 50439 + ... + 58192.

It is an arithmetic number, because the mean of its divisors is an integer number (105318724).

Almost surely, 2^421162387 is an apocalyptic number.

421162387 is a deficient number, since it is larger than the sum of its proper divisors (112509).

421162387 is a wasteful number, since it uses less digits than its factorization.

421162387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112508.

The product of its digits is 16128, while the sum is 34.

The square root of 421162387 is about 20522.2412762349. The cubic root of 421162387 is about 749.5774728206.

The spelling of 421162387 in words is "four hundred twenty-one million, one hundred sixty-two thousand, three hundred eighty-seven".