868239005 has 8 divisors (see below), whose sum is σ = 1056159672. Its totient is φ = 685075968.

The previous prime is 868238999. The next prime is 868239017. The reversal of 868239005 is 500932868.

It can be written as a sum of positive squares in 4 ways, for example, as 51079609 + 817159396 = 7147^2 + 28586^2 .

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 868239005 - 2⁶ = 868238941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189004 + ... + 1189733.

It is an arithmetic number, because the mean of its divisors is an integer number (132019959).

Almost surely, 2^868239005 is an apocalyptic number.

It is an amenable number.

868239005 is a deficient number, since it is larger than the sum of its proper divisors (187920667).

868239005 is a wasteful number, since it uses less digits than its factorization.

868239005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378815.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 868239005 is about 29465.8956252818. The cubic root of 868239005 is about 953.9957298292.

The spelling of 868239005 in words is "eight hundred sixty-eight million, two hundred thirty-nine thousand, five".