420519167 has 4 divisors (see below), whose sum is σ = 421954680. Its totient is φ = 419083656.

The previous prime is 420519109. The next prime is 420519173. The reversal of 420519167 is 761915024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420519167 - 2⁸ = 420518911 is a prime.

It is a super-3 number, since 3×420519167³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420519107) 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, 717317 + ... + 717902.

It is an arithmetic number, because the mean of its divisors is an integer number (105488670).

Almost surely, 2^420519167 is an apocalyptic number.

420519167 is a deficient number, since it is larger than the sum of its proper divisors (1435513).

420519167 is a wasteful number, since it uses less digits than its factorization.

420519167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435512.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 420519167 is about 20506.5639979008. The cubic root of 420519167 is about 749.1956811440.

The spelling of 420519167 in words is "four hundred twenty million, five hundred nineteen thousand, one hundred sixty-seven".