402863663 has 8 divisors (see below), whose sum is σ = 414269856. Its totient is φ = 391532800.

The previous prime is 402863647. The next prime is 402863677. The reversal of 402863663 is 366368204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402863663 - 2⁴ = 402863647 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 (402863863) 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 7 ways as a sum of consecutive naturals, for example, 7898 + ... + 29463.

It is an arithmetic number, because the mean of its divisors is an integer number (51783732).

Almost surely, 2^402863663 is an apocalyptic number.

402863663 is a deficient number, since it is larger than the sum of its proper divisors (11406193).

402863663 is a wasteful number, since it uses less digits than its factorization.

402863663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37665.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 402863663 is about 20071.4638977828. The cubic root of 402863663 is about 738.5604244612.

The spelling of 402863663 in words is "four hundred two million, eight hundred sixty-three thousand, six hundred sixty-three".