766927872 has 88 divisors (see below), whose sum is σ = 2271351200. Its totient is φ = 255633408.

The previous prime is 766927859. The next prime is 766927873. The reversal of 766927872 is 278729667.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (766927873) 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, 13779 + ... + 41517.

Almost surely, 2^766927872 is an apocalyptic number.

766927872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 766927872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135675600).

766927872 is an abundant number, since it is smaller than the sum of its proper divisors (1504423328).

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

766927872 is a wasteful number, since it uses less digits than its factorization.

766927872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27768 (or 27744 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 766927872 is about 27693.4626220702. The cubic root of 766927872 is about 915.3450566367.

The spelling of 766927872 in words is "seven hundred sixty-six million, nine hundred twenty-seven thousand, eight hundred seventy-two".