810201873 has 8 divisors (see below), whose sum is σ = 1163366848. Its totient is φ = 498585744.

The previous prime is 810201869. The next prime is 810201877. The reversal of 810201873 is 378102018.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (810201869) and next prime (810201877).

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

It is not a de Polignac number, because 810201873 - 2² = 810201869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 810201873.

It is not an unprimeable number, because it can be changed into a prime (810201877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10387165 + ... + 10387242.

It is an arithmetic number, because the mean of its divisors is an integer number (145420856).

Almost surely, 2^810201873 is an apocalyptic number.

It is an amenable number.

810201873 is a deficient number, since it is larger than the sum of its proper divisors (353164975).

810201873 is a wasteful number, since it uses less digits than its factorization.

810201873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774423.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 810201873 is about 28464.0452676706. The cubic root of 810201873 is about 932.2471856435.

The spelling of 810201873 in words is "eight hundred ten million, two hundred one thousand, eight hundred seventy-three".