402881803 has 2 divisors, whose sum is σ = 402881804. Its totient is φ = 402881802.

The previous prime is 402881753. The next prime is 402881807. The reversal of 402881803 is 308188204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402881803 is a prime.

It is not a weakly prime, because it can be changed into another prime (402881807) 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 as a sum of consecutive naturals, namely, 201440901 + 201440902.

It is an arithmetic number, because the mean of its divisors is an integer number (201440902).

Almost surely, 2^402881803 is an apocalyptic number.

402881803 is a deficient number, since it is larger than the sum of its proper divisors (1).

402881803 is an equidigital number, since it uses as much as digits as its factorization.

402881803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 402881803 is about 20071.9157780218. The cubic root of 402881803 is about 738.5715095058.

The spelling of 402881803 in words is "four hundred two million, eight hundred eighty-one thousand, eight hundred three".