406903253 has 4 divisors (see below), whose sum is σ = 407703180. Its totient is φ = 406103328.

The previous prime is 406903247. The next prime is 406903271. The reversal of 406903253 is 352309604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 337714129 + 69189124 = 18377^2 + 8318^2 .

It is a cyclic number.

It is not a de Polignac number, because 406903253 - 2¹⁰ = 406902229 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 (406903223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399200 + ... + 400217.

It is an arithmetic number, because the mean of its divisors is an integer number (101925795).

Almost surely, 2^406903253 is an apocalyptic number.

It is an amenable number.

406903253 is a deficient number, since it is larger than the sum of its proper divisors (799927).

406903253 is an equidigital number, since it uses as much as digits as its factorization.

406903253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799926.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 406903253 is about 20171.8430739484. The cubic root of 406903253 is about 741.0207808077.

The spelling of 406903253 in words is "four hundred six million, nine hundred three thousand, two hundred fifty-three".