404016677 has 4 divisors (see below), whose sum is σ = 404088300. Its totient is φ = 403945056.

The previous prime is 404016671. The next prime is 404016733. The reversal of 404016677 is 776610404.

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 97101316 + 306915361 = 9854^2 + 17519^2 .

It is a cyclic number.

It is not a de Polignac number, because 404016677 - 2¹⁴ = 404000293 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 (404016671) 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, 26552 + ... + 38897.

It is an arithmetic number, because the mean of its divisors is an integer number (101022075).

Almost surely, 2^404016677 is an apocalyptic number.

It is an amenable number.

404016677 is a deficient number, since it is larger than the sum of its proper divisors (71623).

404016677 is an equidigital number, since it uses as much as digits as its factorization.

404016677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71622.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 404016677 is about 20100.1660938411. The cubic root of 404016677 is about 739.2643510957.

The spelling of 404016677 in words is "four hundred four million, sixteen thousand, six hundred seventy-seven".