420837697 has 8 divisors (see below), whose sum is σ = 482659136. Its totient is φ = 359441712.

The previous prime is 420837691. The next prime is 420837733. The reversal of 420837697 is 796738024.

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

It is not a de Polignac number, because 420837697 - 2¹⁵ = 420804929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420837691) 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 7 ways as a sum of consecutive naturals, for example, 104238 + ... + 108199.

It is an arithmetic number, because the mean of its divisors is an integer number (60332392).

Almost surely, 2^420837697 is an apocalyptic number.

It is an amenable number.

420837697 is a deficient number, since it is larger than the sum of its proper divisors (61821439).

420837697 is a wasteful number, since it uses less digits than its factorization.

420837697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212727.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 420837697 is about 20514.3290653143. The cubic root of 420837697 is about 749.3847974316.

It can be divided in two parts, 4208 and 37697, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 420837697 in words is "four hundred twenty million, eight hundred thirty-seven thousand, six hundred ninety-seven".