421357065 has 8 divisors (see below), whose sum is σ = 674171328. Its totient is φ = 224723760.

The previous prime is 421357031. The next prime is 421357093. The reversal of 421357065 is 560753124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421357065 - 2⁹ = 421356553 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14045221 + ... + 14045250.

It is an arithmetic number, because the mean of its divisors is an integer number (84271416).

Almost surely, 2^421357065 is an apocalyptic number.

It is an amenable number.

421357065 is a deficient number, since it is larger than the sum of its proper divisors (252814263).

421357065 is a wasteful number, since it uses less digits than its factorization.

421357065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28090479.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 421357065 is about 20526.9838261738. The cubic root of 421357065 is about 749.6929498663.

The spelling of 421357065 in words is "four hundred twenty-one million, three hundred fifty-seven thousand, sixty-five".