801494819 has 2 divisors, whose sum is σ = 801494820. Its totient is φ = 801494818.

The previous prime is 801494783. The next prime is 801494831. The reversal of 801494819 is 918494108.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801494819 is a prime.

It is a super-2 number, since 2×801494819² = 1284787889767685522, which contains 22 as substring.

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 801494819.

It is not a weakly prime, because it can be changed into another prime (801491819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400747409 + 400747410.

It is an arithmetic number, because the mean of its divisors is an integer number (400747410).

Almost surely, 2^801494819 is an apocalyptic number.

801494819 is a deficient number, since it is larger than the sum of its proper divisors (1).

801494819 is an equidigital number, since it uses as much as digits as its factorization.

801494819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 801494819 is about 28310.6838313736. The cubic root of 801494819 is about 928.8956015707.

The spelling of 801494819 in words is "eight hundred one million, four hundred ninety-four thousand, eight hundred nineteen".