801916403 has 2 divisors, whose sum is σ = 801916404. Its totient is φ = 801916402.

The previous prime is 801916399. The next prime is 801916483. The reversal of 801916403 is 304619108.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801916403 - 2² = 801916399 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 801916403.

It is not a weakly prime, because it can be changed into another prime (801916483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400958201 + 400958202.

It is an arithmetic number, because the mean of its divisors is an integer number (400958202).

Almost surely, 2^801916403 is an apocalyptic number.

801916403 is a deficient number, since it is larger than the sum of its proper divisors (1).

801916403 is an equidigital number, since it uses as much as digits as its factorization.

801916403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 801916403 is about 28318.1285222029. The cubic root of 801916403 is about 929.0584385068.

The spelling of 801916403 in words is "eight hundred one million, nine hundred sixteen thousand, four hundred three".