406724293 has 2 divisors, whose sum is σ = 406724294. Its totient is φ = 406724292.

The previous prime is 406724287. The next prime is 406724321. The reversal of 406724293 is 392427604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232959169 + 173765124 = 15263^2 + 13182^2 .

It is a cyclic number.

It is not a de Polignac number, because 406724293 - 2²¹ = 404627141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406794293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203362146 + 203362147.

It is an arithmetic number, because the mean of its divisors is an integer number (203362147).

Almost surely, 2^406724293 is an apocalyptic number.

It is an amenable number.

406724293 is a deficient number, since it is larger than the sum of its proper divisors (1).

406724293 is an equidigital number, since it uses as much as digits as its factorization.

406724293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 406724293 is about 20167.4066999205. The cubic root of 406724293 is about 740.9121288335.

The spelling of 406724293 in words is "four hundred six million, seven hundred twenty-four thousand, two hundred ninety-three".