420700047 has 8 divisors (see below), whose sum is σ = 566487600. Its totient is φ = 277689600.

The previous prime is 420700019. The next prime is 420700067. The reversal of 420700047 is 740007024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420700047 - 2¹⁵ = 420667279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420700067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693922 + ... + 694527.

It is an arithmetic number, because the mean of its divisors is an integer number (70810950).

Almost surely, 2^420700047 is an apocalyptic number.

420700047 is a deficient number, since it is larger than the sum of its proper divisors (145787553).

420700047 is a wasteful number, since it uses less digits than its factorization.

420700047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388553.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 420700047 is about 20510.9738189097. The cubic root of 420700047 is about 749.3030841672.

The spelling of 420700047 in words is "four hundred twenty million, seven hundred thousand, forty-seven".