420615271 has 8 divisors (see below), whose sum is σ = 423423504. Its totient is φ = 417816960.

The previous prime is 420615263. The next prime is 420615277. The reversal of 420615271 is 172516024.

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 420615271 - 2³ = 420615263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420615277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94815 + ... + 99151.

It is an arithmetic number, because the mean of its divisors is an integer number (52927938).

Almost surely, 2^420615271 is an apocalyptic number.

420615271 is a deficient number, since it is larger than the sum of its proper divisors (2808233).

420615271 is a wasteful number, since it uses less digits than its factorization.

420615271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 420615271 is about 20508.9071137396. The cubic root of 420615271 is about 749.2527496624.

The spelling of 420615271 in words is "four hundred twenty million, six hundred fifteen thousand, two hundred seventy-one".