810950897 has 8 divisors (see below), whose sum is σ = 824763432. Its totient is φ = 797155200.

The previous prime is 810950893. The next prime is 810950909. The reversal of 810950897 is 798059018.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 178730161 + 632220736 = 13369^2 + 25144^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 810950897 - 2² = 810950893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (810950891) 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, 127247 + ... + 133467.

It is an arithmetic number, because the mean of its divisors is an integer number (103095429).

Almost surely, 2^810950897 is an apocalyptic number.

It is an amenable number.

810950897 is a deficient number, since it is larger than the sum of its proper divisors (13812535).

810950897 is a wasteful number, since it uses less digits than its factorization.

810950897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8419.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 810950897 is about 28477.1995989774. The cubic root of 810950897 is about 932.5343817390.

The spelling of 810950897 in words is "eight hundred ten million, nine hundred fifty thousand, eight hundred ninety-seven".