866507930 has 16 divisors (see below), whose sum is σ = 1570937760. Its totient is φ = 344109072.

The previous prime is 866507903. The next prime is 866507951. The reversal of 866507930 is 39705668.

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 7 ways as a sum of consecutive naturals, for example, 310304 + ... + 313083.

It is an arithmetic number, because the mean of its divisors is an integer number (98183610).

Almost surely, 2^866507930 is an apocalyptic number.

866507930 is a deficient number, since it is larger than the sum of its proper divisors (704429830).

866507930 is a wasteful number, since it uses less digits than its factorization.

866507930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623533.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 866507930 is about 29436.5067560674. The cubic root of 866507930 is about 953.3612897350.

The spelling of 866507930 in words is "eight hundred sixty-six million, five hundred seven thousand, nine hundred thirty".