766480561 has 8 divisors (see below), whose sum is σ = 955612224. Its totient is φ = 597257520.

The previous prime is 766480537. The next prime is 766480573. The reversal of 766480561 is 165084667.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 766480561 - 2⁵ = 766480529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (766480511) 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, 4977070 + ... + 4977223.

It is an arithmetic number, because the mean of its divisors is an integer number (119451528).

Almost surely, 2^766480561 is an apocalyptic number.

It is an amenable number.

766480561 is a deficient number, since it is larger than the sum of its proper divisors (189131663).

766480561 is a wasteful number, since it uses less digits than its factorization.

766480561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9954311.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 766480561 is about 27685.3853323373. The cubic root of 766480561 is about 915.1670635658.

The spelling of 766480561 in words is "seven hundred sixty-six million, four hundred eighty thousand, five hundred sixty-one".