408716461 has 4 divisors (see below), whose sum is σ = 409874652. Its totient is φ = 407558272.

The previous prime is 408716453. The next prime is 408716489. The reversal of 408716461 is 164617804.

It is a happy number.

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 74046025 + 334670436 = 8605^2 + 18294^2 .

It is a cyclic number.

It is not a de Polignac number, because 408716461 - 2³ = 408716453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408716461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408716411) 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, 578566 + ... + 579271.

It is an arithmetic number, because the mean of its divisors is an integer number (102468663).

Almost surely, 2^408716461 is an apocalyptic number.

It is an amenable number.

408716461 is a deficient number, since it is larger than the sum of its proper divisors (1158191).

408716461 is a wasteful number, since it uses less digits than its factorization.

408716461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158190.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 408716461 is about 20216.7371501932. The cubic root of 408716461 is about 742.1198413679.

The spelling of 408716461 in words is "four hundred eight million, seven hundred sixteen thousand, four hundred sixty-one".