814846961 has 4 divisors (see below), whose sum is σ = 815465124. Its totient is φ = 814228800.

The previous prime is 814846937. The next prime is 814846979. The reversal of 814846961 is 169648418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 758671936 + 56175025 = 27544^2 + 7495^2 .

It is a cyclic number.

It is not a de Polignac number, because 814846961 - 2¹⁰ = 814845937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814846061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307100 + ... + 309741.

It is an arithmetic number, because the mean of its divisors is an integer number (203866281).

Almost surely, 2^814846961 is an apocalyptic number.

It is an amenable number.

814846961 is a deficient number, since it is larger than the sum of its proper divisors (618163).

814846961 is a wasteful number, since it uses less digits than its factorization.

814846961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618162.

The product of its digits is 331776, while the sum is 47.

The square root of 814846961 is about 28545.5243602215. The cubic root of 814846961 is about 934.0253929945.

The spelling of 814846961 in words is "eight hundred fourteen million, eight hundred forty-six thousand, nine hundred sixty-one".