766206447 has 16 divisors (see below), whose sum is σ = 1060681728. Its totient is φ = 491459040.

The previous prime is 766206431. The next prime is 766206461. The reversal of 766206447 is 744602667.

It is not a de Polignac number, because 766206447 - 2⁴ = 766206431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766206399 and 766206408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766206347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7723 + ... + 39900.

It is an arithmetic number, because the mean of its divisors is an integer number (66292608).

Almost surely, 2^766206447 is an apocalyptic number.

766206447 is a deficient number, since it is larger than the sum of its proper divisors (294475281).

766206447 is a wasteful number, since it uses less digits than its factorization.

766206447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47830.

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 766206447 is about 27680.4343715918. The cubic root of 766206447 is about 915.0579544647.

The spelling of 766206447 in words is "seven hundred sixty-six million, two hundred six thousand, four hundred forty-seven".