526978986 has 32 divisors (see below), whose sum is σ = 1095812928. Its totient is φ = 168812160.

The previous prime is 526978979. The next prime is 526978999. The reversal of 526978986 is 689879625.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 32468.

It is an arithmetic number, because the mean of its divisors is an integer number (34244154).

Almost surely, 2^526978986 is an apocalyptic number.

526978986 is an abundant number, since it is smaller than the sum of its proper divisors (568833942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

526978986 is a wasteful number, since it uses less digits than its factorization.

526978986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32086.

The product of its digits is 13063680, while the sum is 60.

The square root of 526978986 is about 22956.0228698266. The cubic root of 526978986 is about 807.7266878190.

It can be divided in two parts, 5269 and 78986, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 526978986 in words is "five hundred twenty-six million, nine hundred seventy-eight thousand, nine hundred eighty-six".