859691055 has 8 divisors (see below), whose sum is σ = 1375505712. Its totient is φ = 458501888.

The previous prime is 859691017. The next prime is 859691057. The reversal of 859691055 is 550196958.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 859691055 - 2⁶ = 859690991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 859690995 and 859691013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859691057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28656354 + ... + 28656383.

It is an arithmetic number, because the mean of its divisors is an integer number (171938214).

Almost surely, 2^859691055 is an apocalyptic number.

859691055 is a deficient number, since it is larger than the sum of its proper divisors (515814657).

859691055 is a wasteful number, since it uses less digits than its factorization.

859691055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57312745.

The product of its (nonzero) digits is 486000, while the sum is 48.

The square root of 859691055 is about 29320.4886555460. The cubic root of 859691055 is about 950.8546528701.

The spelling of 859691055 in words is "eight hundred fifty-nine million, six hundred ninety-one thousand, fifty-five".