868355771 has 4 divisors (see below), whose sum is σ = 869391600. Its totient is φ = 867319944.

The previous prime is 868355749. The next prime is 868355783. The reversal of 868355771 is 177553868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868355771 - 2⁶ = 868355707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868355171) 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, 516656 + ... + 518333.

It is an arithmetic number, because the mean of its divisors is an integer number (217347900).

Almost surely, 2^868355771 is an apocalyptic number.

868355771 is a deficient number, since it is larger than the sum of its proper divisors (1035829).

868355771 is a wasteful number, since it uses less digits than its factorization.

868355771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035828.

The product of its digits is 1411200, while the sum is 50.

The square root of 868355771 is about 29467.8769340446. The cubic root of 868355771 is about 954.0384942722.

The spelling of 868355771 in words is "eight hundred sixty-eight million, three hundred fifty-five thousand, seven hundred seventy-one".