865701601 has 8 divisors (see below), whose sum is σ = 885882240. Its totient is φ = 845594448.

The previous prime is 865701581. The next prime is 865701607. The reversal of 865701601 is 106107568.

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 865701601 - 2¹⁷ = 865570529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (865701607) 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, 5830 + ... + 42016.

It is an arithmetic number, because the mean of its divisors is an integer number (110735280).

Almost surely, 2^865701601 is an apocalyptic number.

It is an amenable number.

865701601 is a deficient number, since it is larger than the sum of its proper divisors (20180639).

865701601 is a wasteful number, since it uses less digits than its factorization.

865701601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36743.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 865701601 is about 29422.8074969062. The cubic root of 865701601 is about 953.0654811616.

The spelling of 865701601 in words is "eight hundred sixty-five million, seven hundred one thousand, six hundred one".