800899741 has 2 divisors, whose sum is σ = 800899742. Its totient is φ = 800899740.

The previous prime is 800899739. The next prime is 800899753. The reversal of 800899741 is 147998008.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720707716 + 80192025 = 26846^2 + 8955^2 .

It is a cyclic number.

It is not a de Polignac number, because 800899741 - 2¹ = 800899739 is a prime.

Together with 800899739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 800899691 and 800899700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800894741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400449870 + 400449871.

It is an arithmetic number, because the mean of its divisors is an integer number (400449871).

Almost surely, 2^800899741 is an apocalyptic number.

It is an amenable number.

800899741 is a deficient number, since it is larger than the sum of its proper divisors (1).

800899741 is an equidigital number, since it uses as much as digits as its factorization.

800899741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 800899741 is about 28300.1721019502. The cubic root of 800899741 is about 928.6656553160.

The spelling of 800899741 in words is "eight hundred million, eight hundred ninety-nine thousand, seven hundred forty-one".