421847345 has 16 divisors (see below), whose sum is σ = 515704320. Its totient is φ = 331173504.

The previous prime is 421847317. The next prime is 421847351. The reversal of 421847345 is 543748124.

It is a cyclic number.

It is not a de Polignac number, because 421847345 - 2¹² = 421843249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421847299 and 421847308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253757 + ... + 255413.

It is an arithmetic number, because the mean of its divisors is an integer number (32231520).

Almost surely, 2^421847345 is an apocalyptic number.

It is an amenable number.

421847345 is a deficient number, since it is larger than the sum of its proper divisors (93856975).

421847345 is a wasteful number, since it uses less digits than its factorization.

421847345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584.

The product of its digits is 107520, while the sum is 38.

The square root of 421847345 is about 20538.9226835294. The cubic root of 421847345 is about 749.9836114937.

The spelling of 421847345 in words is "four hundred twenty-one million, eight hundred forty-seven thousand, three hundred forty-five".