827145976 has 8 divisors (see below), whose sum is σ = 1550898720. Its totient is φ = 413572984.

The previous prime is 827145973. The next prime is 827145983. The reversal of 827145976 is 679541728.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×827145976² = 1368340931225985152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827145971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51696616 + ... + 51696631.

It is an arithmetic number, because the mean of its divisors is an integer number (193862340).

Almost surely, 2^827145976 is an apocalyptic number.

It is an amenable number.

827145976 is a deficient number, since it is larger than the sum of its proper divisors (723752744).

827145976 is a wasteful number, since it uses less digits than its factorization.

827145976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103393253 (or 103393249 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 827145976 is about 28760.1456185465. The cubic root of 827145976 is about 938.7012303484.

The spelling of 827145976 in words is "eight hundred twenty-seven million, one hundred forty-five thousand, nine hundred seventy-six".