420467673 has 4 divisors (see below), whose sum is σ = 560623568. Its totient is φ = 280311780.

The previous prime is 420467657. The next prime is 420467731. The reversal of 420467673 is 376764024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 420467673 - 2⁴ = 420467657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420467573) 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 3 ways as a sum of consecutive naturals, for example, 70077943 + ... + 70077948.

It is an arithmetic number, because the mean of its divisors is an integer number (140155892).

Almost surely, 2^420467673 is an apocalyptic number.

It is an amenable number.

420467673 is a deficient number, since it is larger than the sum of its proper divisors (140155895).

420467673 is a wasteful number, since it uses less digits than its factorization.

420467673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140155894.

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 420467673 is about 20505.3084102629. The cubic root of 420467673 is about 749.1650993773.

The spelling of 420467673 in words is "four hundred twenty million, four hundred sixty-seven thousand, six hundred seventy-three".