420532617 has 8 divisors (see below), whose sum is σ = 560816640. Its totient is φ = 280301840.

The previous prime is 420532583. The next prime is 420532627. The reversal of 420532617 is 716235024.

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 420532617 - 2²³ = 412144009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420532627) 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 7 ways as a sum of consecutive naturals, for example, 11992 + ... + 31382.

It is an arithmetic number, because the mean of its divisors is an integer number (70102080).

Almost surely, 2^420532617 is an apocalyptic number.

It is an amenable number.

420532617 is a deficient number, since it is larger than the sum of its proper divisors (140284023).

420532617 is a wasteful number, since it uses less digits than its factorization.

420532617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26623.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 420532617 is about 20506.8919390531. The cubic root of 420532617 is about 749.2036685520.

The spelling of 420532617 in words is "four hundred twenty million, five hundred thirty-two thousand, six hundred seventeen".