865487093 has 16 divisors (see below), whose sum is σ = 905846784. Its totient is φ = 826277760.

The previous prime is 865487087. The next prime is 865487111. The reversal of 865487093 is 390784568.

It is a cyclic number.

It is not a de Polignac number, because 865487093 - 2⁸ = 865486837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865487023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362921 + ... + 365297.

It is an arithmetic number, because the mean of its divisors is an integer number (56615424).

Almost surely, 2^865487093 is an apocalyptic number.

It is an amenable number.

865487093 is a deficient number, since it is larger than the sum of its proper divisors (40359691).

865487093 is a wasteful number, since it uses less digits than its factorization.

865487093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 865487093 is about 29419.1620037009. The cubic root of 865487093 is about 952.9867561683.

The spelling of 865487093 in words is "eight hundred sixty-five million, four hundred eighty-seven thousand, ninety-three".