402104663 has 4 divisors (see below), whose sum is σ = 403064760. Its totient is φ = 401144568.

The previous prime is 402104629. The next prime is 402104683. The reversal of 402104663 is 366401204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402104663 - 2²⁴ = 385327447 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 (402104603) 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, 479420 + ... + 480257.

It is an arithmetic number, because the mean of its divisors is an integer number (100766190).

Almost surely, 2^402104663 is an apocalyptic number.

402104663 is a deficient number, since it is larger than the sum of its proper divisors (960097).

402104663 is an equidigital number, since it uses as much as digits as its factorization.

402104663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960096.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 402104663 is about 20052.5475438908. The cubic root of 402104663 is about 738.0963139599.

Adding to 402104663 its reverse (366401204), we get a palindrome (768505867).

The spelling of 402104663 in words is "four hundred two million, one hundred four thousand, six hundred sixty-three".