801810361 has 4 divisors (see below), whose sum is σ = 874702224. Its totient is φ = 728918500.

The previous prime is 801810353. The next prime is 801810377. The reversal of 801810361 is 163018108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 801810361 - 2³ = 801810353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (801810311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36445915 + ... + 36445936.

It is an arithmetic number, because the mean of its divisors is an integer number (218675556).

Almost surely, 2^801810361 is an apocalyptic number.

It is an amenable number.

801810361 is a deficient number, since it is larger than the sum of its proper divisors (72891863).

801810361 is a wasteful number, since it uses less digits than its factorization.

801810361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72891862.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 801810361 is about 28316.2561261195. The cubic root of 801810361 is about 929.0174851283.

Adding to 801810361 its reverse (163018108), we get a palindrome (964828469).

The spelling of 801810361 in words is "eight hundred one million, eight hundred ten thousand, three hundred sixty-one".