868088749 has 8 divisors (see below), whose sum is σ = 964874592. Its totient is φ = 774281040.

The previous prime is 868088729. The next prime is 868088761. The reversal of 868088749 is 947880868.

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 868088749 - 2⁹ = 868088237 is a prime.

It is a super-2 number, since 2×868088749² = 1507156152280770002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 868088693 and 868088702.

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 7 ways as a sum of consecutive naturals, for example, 743919 + ... + 745084.

It is an arithmetic number, because the mean of its divisors is an integer number (120609324).

Almost surely, 2^868088749 is an apocalyptic number.

It is an amenable number.

868088749 is a deficient number, since it is larger than the sum of its proper divisors (96785843).

868088749 is a wasteful number, since it uses less digits than its factorization.

868088749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489067.

The product of its (nonzero) digits is 6193152, while the sum is 58.

The square root of 868088749 is about 29463.3458554863. The cubic root of 868088749 is about 953.9406943489.

The spelling of 868088749 in words is "eight hundred sixty-eight million, eighty-eight thousand, seven hundred forty-nine".