861850514 has 12 divisors (see below), whose sum is σ = 1503841374. Its totient is φ = 369364464.

The previous prime is 861850477. The next prime is 861850519. The reversal of 861850514 is 415058168.

It can be written as a sum of positive squares in only one way, i.e., 512796025 + 349054489 = 22645^2 + 18683^2 .

It is not an unprimeable number, because it can be changed into a prime (861850519) 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 in 5 ways as a sum of consecutive naturals, for example, 4397099 + ... + 4397294.

Almost surely, 2^861850514 is an apocalyptic number.

861850514 is a deficient number, since it is larger than the sum of its proper divisors (641990860).

861850514 is a wasteful number, since it uses less digits than its factorization.

861850514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794409 (or 8794402 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 861850514 is about 29357.2906447444. The cubic root of 861850514 is about 951.6501381652.

The spelling of 861850514 in words is "eight hundred sixty-one million, eight hundred fifty thousand, five hundred fourteen".