420536417 has 4 divisors (see below), whose sum is σ = 480613056. Its totient is φ = 360459780.

The previous prime is 420536411. The next prime is 420536423. The reversal of 420536417 is 714635024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (420536411) and next prime (420536423).

It is a cyclic number.

It is not a de Polignac number, because 420536417 - 2¹⁰ = 420535393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420536411) 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, 30038309 + ... + 30038322.

It is an arithmetic number, because the mean of its divisors is an integer number (120153264).

Almost surely, 2^420536417 is an apocalyptic number.

It is an amenable number.

420536417 is a deficient number, since it is larger than the sum of its proper divisors (60076639).

420536417 is an equidigital number, since it uses as much as digits as its factorization.

420536417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60076638.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 420536417 is about 20506.9845906218. The cubic root of 420536417 is about 749.2059251866.

The spelling of 420536417 in words is "four hundred twenty million, five hundred thirty-six thousand, four hundred seventeen".