406322817 has 4 divisors (see below), whose sum is σ = 541763760. Its totient is φ = 270881876.

The previous prime is 406322803. The next prime is 406322827. The reversal of 406322817 is 718223604.

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 406322817 - 2⁶ = 406322753 is a prime.

It is a super-2 number, since 2×406322817² = 330196463229630978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (406322827) 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, 67720467 + ... + 67720472.

It is an arithmetic number, because the mean of its divisors is an integer number (135440940).

Almost surely, 2^406322817 is an apocalyptic number.

It is an amenable number.

406322817 is a deficient number, since it is larger than the sum of its proper divisors (135440943).

406322817 is a wasteful number, since it uses less digits than its factorization.

406322817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135440942.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 406322817 is about 20157.4506572632. The cubic root of 406322817 is about 740.6682647303.

The spelling of 406322817 in words is "four hundred six million, three hundred twenty-two thousand, eight hundred seventeen".