420517675 has 6 divisors (see below), whose sum is σ = 521441948. Its totient is φ = 336414120.

The previous prime is 420517667. The next prime is 420517679. The reversal of 420517675 is 576715024.

It is not a de Polignac number, because 420517675 - 2³ = 420517667 is a prime.

It is a super-2 number, since 2×420517675² = 353670229974811250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420517679) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8410329 + ... + 8410378.

Almost surely, 2^420517675 is an apocalyptic number.

420517675 is a deficient number, since it is larger than the sum of its proper divisors (100924273).

420517675 is a wasteful number, since it uses less digits than its factorization.

420517675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16820717 (or 16820712 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 420517675 is about 20506.5276192728. The cubic root of 420517675 is about 749.1947950954.

The spelling of 420517675 in words is "four hundred twenty million, five hundred seventeen thousand, six hundred seventy-five".