868088789 has 4 divisors (see below), whose sum is σ = 869345760. Its totient is φ = 866831820.

The previous prime is 868088761. The next prime is 868088797. The reversal of 868088789 is 987880868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868088789 - 2¹⁶ = 868023253 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 (868088729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627449 + ... + 628830.

It is an arithmetic number, because the mean of its divisors is an integer number (217336440).

Almost surely, 2^868088789 is an apocalyptic number.

It is an amenable number.

868088789 is a deficient number, since it is larger than the sum of its proper divisors (1256971).

868088789 is a wasteful number, since it uses less digits than its factorization.

868088789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256970.

The product of its (nonzero) digits is 12386304, while the sum is 62.

The square root of 868088789 is about 29463.3465342958. The cubic root of 868088789 is about 953.9407090009.

The spelling of 868088789 in words is "eight hundred sixty-eight million, eighty-eight thousand, seven hundred eighty-nine".