868931370 has 192 divisors, whose sum is σ = 2559548160. Its totient is φ = 203212800.

The previous prime is 868931363. The next prime is 868931377. The reversal of 868931370 is 73139868.

868931370 = T₅₀ + T₅₁ + ... + T₁₇₃₃.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (868931363) and next prime (868931377).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (868931377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2063760 + ... + 2064180.

It is an arithmetic number, because the mean of its divisors is an integer number (13330980).

Almost surely, 2^868931370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868931370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279774080).

868931370 is an abundant number, since it is smaller than the sum of its proper divisors (1690616790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868931370 is a wasteful number, since it uses less digits than its factorization.

868931370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 868931370 is about 29477.6418663366. The cubic root of 868931370 is about 954.2492459521.

The spelling of 868931370 in words is "eight hundred sixty-eight million, nine hundred thirty-one thousand, three hundred seventy".