766725738 has 16 divisors (see below), whose sum is σ = 1623654720. Its totient is φ = 240541376.

The previous prime is 766725691. The next prime is 766725749. The reversal of 766725738 is 837527667.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3758358 + ... + 3758561.

It is an arithmetic number, because the mean of its divisors is an integer number (101478420).

Almost surely, 2^766725738 is an apocalyptic number.

766725738 is an abundant number, since it is smaller than the sum of its proper divisors (856928982).

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

766725738 is a wasteful number, since it uses less digits than its factorization.

766725738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516941.

The product of its digits is 2963520, while the sum is 51.

The square root of 766725738 is about 27689.8128921089. The cubic root of 766725738 is about 915.2646324657.

The spelling of 766725738 in words is "seven hundred sixty-six million, seven hundred twenty-five thousand, seven hundred thirty-eight".