463980409 has 4 divisors (see below), whose sum is σ = 468237220. Its totient is φ = 459723600.

The previous prime is 463980383. The next prime is 463980421. The reversal of 463980409 is 904089364.

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 337530384 + 126450025 = 18372^2 + 11245^2 .

It is a cyclic number.

It is not a de Polignac number, because 463980409 - 2⁷ = 463980281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463981409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128242 + ... + 2128459.

It is an arithmetic number, because the mean of its divisors is an integer number (117059305).

Almost surely, 2^463980409 is an apocalyptic number.

It is an amenable number.

463980409 is a deficient number, since it is larger than the sum of its proper divisors (4256811).

463980409 is a wasteful number, since it uses less digits than its factorization.

463980409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256810.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 463980409 is about 21540.2044790666. The cubic root of 463980409 is about 774.1644322331.

The spelling of 463980409 in words is "four hundred sixty-three million, nine hundred eighty thousand, four hundred nine".