864262993 has 16 divisors (see below), whose sum is σ = 952305984. Its totient is φ = 777832960.

The previous prime is 864262969. The next prime is 864262999. The reversal of 864262993 is 399262468.

It is a happy number.

864262993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 864262993 - 2²¹ = 862165841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864262999) 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, 884121 + ... + 885097.

It is an arithmetic number, because the mean of its divisors is an integer number (59519124).

Almost surely, 2^864262993 is an apocalyptic number.

It is an amenable number.

864262993 is a deficient number, since it is larger than the sum of its proper divisors (88042991).

864262993 is a wasteful number, since it uses less digits than its factorization.

864262993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its digits is 1119744, while the sum is 49.

The square root of 864262993 is about 29398.3501747972. The cubic root of 864262993 is about 952.5372591933.

The spelling of 864262993 in words is "eight hundred sixty-four million, two hundred sixty-two thousand, nine hundred ninety-three".