865027641 has 8 divisors (see below), whose sum is σ = 1172278144. Its totient is φ = 567231120.

The previous prime is 865027619. The next prime is 865027673. The reversal of 865027641 is 146720568.

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

It is not a de Polignac number, because 865027641 - 2⁹ = 865027129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 865027641.

It is not an unprimeable number, because it can be changed into a prime (865027741) 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, 2363281 + ... + 2363646.

It is an arithmetic number, because the mean of its divisors is an integer number (146534768).

Almost surely, 2^865027641 is an apocalyptic number.

It is an amenable number.

865027641 is a deficient number, since it is larger than the sum of its proper divisors (307250503).

865027641 is a wasteful number, since it uses less digits than its factorization.

865027641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726991.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 865027641 is about 29411.3522470491. The cubic root of 865027641 is about 952.8180923116.

The spelling of 865027641 in words is "eight hundred sixty-five million, twenty-seven thousand, six hundred forty-one".