421268617 has 16 divisors (see below), whose sum is σ = 526276224. Its totient is φ = 327600000.

The previous prime is 421268609. The next prime is 421268663. The reversal of 421268617 is 716862124.

It is not a de Polignac number, because 421268617 - 2³ = 421268609 is a prime.

It is a super-3 number, since 3×421268617³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421263617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34867 + ... + 45367.

It is an arithmetic number, because the mean of its divisors is an integer number (32892264).

Almost surely, 2^421268617 is an apocalyptic number.

It is an amenable number.

421268617 is a deficient number, since it is larger than the sum of its proper divisors (105007607).

421268617 is a wasteful number, since it uses less digits than its factorization.

421268617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040.

The product of its digits is 32256, while the sum is 37.

The square root of 421268617 is about 20524.8292806542. The cubic root of 421268617 is about 749.6404896232.

The spelling of 421268617 in words is "four hundred twenty-one million, two hundred sixty-eight thousand, six hundred seventeen".