420650213 has 4 divisors (see below), whose sum is σ = 423436128. Its totient is φ = 417864300.

The previous prime is 420650171. The next prime is 420650267. The reversal of 420650213 is 312056024.

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 a cyclic number.

It is not a de Polignac number, because 420650213 - 2²² = 416455909 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 (420650413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392731 + ... + 1393032.

It is an arithmetic number, because the mean of its divisors is an integer number (105859032).

Almost surely, 2^420650213 is an apocalyptic number.

It is an amenable number.

420650213 is a deficient number, since it is larger than the sum of its proper divisors (2785915).

420650213 is a wasteful number, since it uses less digits than its factorization.

420650213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785914.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 420650213 is about 20509.7589698173. The cubic root of 420650213 is about 749.2734967810.

The spelling of 420650213 in words is "four hundred twenty million, six hundred fifty thousand, two hundred thirteen".