406067213 has 4 divisors (see below), whose sum is σ = 407565888. Its totient is φ = 404568540.

The previous prime is 406067203. The next prime is 406067257. The reversal of 406067213 is 312760604.

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 406067213 - 2⁴ = 406067197 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 (406067203) 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, 748931 + ... + 749472.

It is an arithmetic number, because the mean of its divisors is an integer number (101891472).

Almost surely, 2^406067213 is an apocalyptic number.

It is an amenable number.

406067213 is a deficient number, since it is larger than the sum of its proper divisors (1498675).

406067213 is a wasteful number, since it uses less digits than its factorization.

406067213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498674.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 406067213 is about 20151.1094731779. The cubic root of 406067213 is about 740.5129223319.

The spelling of 406067213 in words is "four hundred six million, sixty-seven thousand, two hundred thirteen".