420875807 has 8 divisors (see below), whose sum is σ = 462179712. Its totient is φ = 380079000.

The previous prime is 420875801. The next prime is 420875813. The reversal of 420875807 is 708578024.

It is an interprime number because it is at equal distance from previous prime (420875801) and next prime (420875813).

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 420875807 - 2⁶ = 420875743 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 (420875801) 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, 125033 + ... + 128354.

It is an arithmetic number, because the mean of its divisors is an integer number (57772464).

Almost surely, 2^420875807 is an apocalyptic number.

420875807 is a deficient number, since it is larger than the sum of its proper divisors (41303905).

420875807 is a wasteful number, since it uses less digits than its factorization.

420875807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253549.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 420875807 is about 20515.2579072260. The cubic root of 420875807 is about 749.4074175477.

The spelling of 420875807 in words is "four hundred twenty million, eight hundred seventy-five thousand, eight hundred seven".