406303853 has 4 divisors (see below), whose sum is σ = 406841340. Its totient is φ = 405766368.

The previous prime is 406303831. The next prime is 406303867. The reversal of 406303853 is 358303604.

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 227466724 + 178837129 = 15082^2 + 13373^2 .

It is a cyclic number.

It is not a de Polignac number, because 406303853 - 2⁶ = 406303789 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 (406303813) 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, 267608 + ... + 269121.

It is an arithmetic number, because the mean of its divisors is an integer number (101710335).

Almost surely, 2^406303853 is an apocalyptic number.

It is an amenable number.

406303853 is a deficient number, since it is larger than the sum of its proper divisors (537487).

406303853 is an equidigital number, since it uses as much as digits as its factorization.

406303853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537486.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 406303853 is about 20156.9802549886. The cubic root of 406303853 is about 740.6567416663.

The spelling of 406303853 in words is "four hundred six million, three hundred three thousand, eight hundred fifty-three".