768500172 has 72 divisors (see below), whose sum is σ = 2128548240. Its totient is φ = 231851520.

The previous prime is 768500111. The next prime is 768500177. The reversal of 768500172 is 271005867.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (768500177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88104 + ... + 96432.

It is an arithmetic number, because the mean of its divisors is an integer number (29563170).

Almost surely, 2^768500172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 768500172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064274120).

768500172 is an abundant number, since it is smaller than the sum of its proper divisors (1360048068).

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

768500172 is a wasteful number, since it uses less digits than its factorization.

768500172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 768500172 is about 27721.8356535061. The cubic root of 768500172 is about 915.9701543767.

The spelling of 768500172 in words is "seven hundred sixty-eight million, five hundred thousand, one hundred seventy-two".