421067723 has 8 divisors (see below), whose sum is σ = 427213248. Its totient is φ = 414932544.

The previous prime is 421067681. The next prime is 421067737. The reversal of 421067723 is 327760124.

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 421067723 - 2⁸ = 421067467 is a prime.

It is a super-3 number, since 3×421067723³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421067723.

It is not an unprimeable number, because it can be changed into a prime (421067743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121886 + ... + 125292.

It is an arithmetic number, because the mean of its divisors is an integer number (53401656).

Almost surely, 2^421067723 is an apocalyptic number.

421067723 is a deficient number, since it is larger than the sum of its proper divisors (6145525).

421067723 is a wasteful number, since it uses less digits than its factorization.

421067723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 421067723 is about 20519.9347708515. The cubic root of 421067723 is about 749.5213081668.

The spelling of 421067723 in words is "four hundred twenty-one million, sixty-seven thousand, seven hundred twenty-three".