421573367 has 4 divisors (see below), whose sum is σ = 421682736. Its totient is φ = 421464000.

The previous prime is 421573343. The next prime is 421573391. The reversal of 421573367 is 763375124.

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

It is an interprime number because it is at equal distance from previous prime (421573343) and next prime (421573391).

It is a cyclic number.

It is not a de Polignac number, because 421573367 - 2¹² = 421569271 is a prime.

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 421573367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421573337) 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, 48683 + ... + 56684.

It is an arithmetic number, because the mean of its divisors is an integer number (105420684).

Almost surely, 2^421573367 is an apocalyptic number.

421573367 is a deficient number, since it is larger than the sum of its proper divisors (109369).

421573367 is a wasteful number, since it uses less digits than its factorization.

421573367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109368.

The product of its digits is 105840, while the sum is 38.

The square root of 421573367 is about 20532.2518735768. The cubic root of 421573367 is about 749.8212119017.

The spelling of 421573367 in words is "four hundred twenty-one million, five hundred seventy-three thousand, three hundred sixty-seven".