766628390 has 16 divisors (see below), whose sum is σ = 1505379600. Its totient is φ = 278773920.

The previous prime is 766628389. The next prime is 766628399. The reversal of 766628390 is 93826667.

766628390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766628399) 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, 3484565 + ... + 3484784.

It is an arithmetic number, because the mean of its divisors is an integer number (94086225).

Almost surely, 2^766628390 is an apocalyptic number.

766628390 is a deficient number, since it is larger than the sum of its proper divisors (738751210).

766628390 is a wasteful number, since it uses less digits than its factorization.

766628390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969367.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 766628390 is about 27688.0550057240. The cubic root of 766628390 is about 915.2258950362.

The spelling of 766628390 in words is "seven hundred sixty-six million, six hundred twenty-eight thousand, three hundred ninety".