868933491 has 8 divisors (see below), whose sum is σ = 1208951040. Its totient is φ = 554102472.

The previous prime is 868933489. The next prime is 868933523. The reversal of 868933491 is 194339868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 868933491 - 2¹ = 868933489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868933421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6296551 + ... + 6296688.

It is an arithmetic number, because the mean of its divisors is an integer number (151118880).

Almost surely, 2^868933491 is an apocalyptic number.

868933491 is a deficient number, since it is larger than the sum of its proper divisors (340017549).

868933491 is a wasteful number, since it uses less digits than its factorization.

868933491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593265.

The product of its digits is 1119744, while the sum is 51.

The square root of 868933491 is about 29477.6778427338. The cubic root of 868933491 is about 954.2500223698.

The spelling of 868933491 in words is "eight hundred sixty-eight million, nine hundred thirty-three thousand, four hundred ninety-one".