814885965 has 48 divisors (see below), whose sum is σ = 1527052800. Its totient is φ = 400588416.

The previous prime is 814885963. The next prime is 814885979. The reversal of 814885965 is 569588418.

It is a happy number.

814885965 is a `hidden beast` number, since 8 + 1 + 48 + 8 + 596 + 5 = 666.

It is not a de Polignac number, because 814885965 - 2¹ = 814885963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814885963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18756 + ... + 44514.

It is an arithmetic number, because the mean of its divisors is an integer number (31813600).

Almost surely, 2^814885965 is an apocalyptic number.

It is an amenable number.

814885965 is a deficient number, since it is larger than the sum of its proper divisors (712166835).

814885965 is a wasteful number, since it uses less digits than its factorization.

814885965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826 (or 25823 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The square root of 814885965 is about 28546.2075414581. The cubic root of 814885965 is about 934.0402956477.

The spelling of 814885965 in words is "eight hundred fourteen million, eight hundred eighty-five thousand, nine hundred sixty-five".