865483953 has 16 divisors (see below), whose sum is σ = 1216830720. Its totient is φ = 545669136.

The previous prime is 865483939. The next prime is 865483967. The reversal of 865483953 is 359384568.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (865483939) and next prime (865483967).

It is not a de Polignac number, because 865483953 - 2¹⁶ = 865418417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 865483896 and 865483905.

It is not an unprimeable number, because it can be changed into a prime (865483973) 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, 20526 + ... + 46392.

It is an arithmetic number, because the mean of its divisors is an integer number (76051920).

Almost surely, 2^865483953 is an apocalyptic number.

It is an amenable number.

865483953 is a deficient number, since it is larger than the sum of its proper divisors (351346767).

865483953 is a wasteful number, since it uses less digits than its factorization.

865483953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26476.

The product of its digits is 3110400, while the sum is 51.

The square root of 865483953 is about 29419.1086370746. The cubic root of 865483953 is about 952.9856036835.

The spelling of 865483953 in words is "eight hundred sixty-five million, four hundred eighty-three thousand, nine hundred fifty-three".