420814723 has 8 divisors (see below), whose sum is σ = 482721120. Its totient is φ = 359355840.

The previous prime is 420814721. The next prime is 420814733. The reversal of 420814723 is 327418024.

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 420814723 - 2¹ = 420814721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420814721) 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, 109858 + ... + 113623.

It is an arithmetic number, because the mean of its divisors is an integer number (60340140).

Almost surely, 2^420814723 is an apocalyptic number.

420814723 is a deficient number, since it is larger than the sum of its proper divisors (61906397).

420814723 is a wasteful number, since it uses less digits than its factorization.

420814723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223757.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 420814723 is about 20513.7691076018. The cubic root of 420814723 is about 749.3711605991.

The spelling of 420814723 in words is "four hundred twenty million, eight hundred fourteen thousand, seven hundred twenty-three".