776576641 has 8 divisors (see below), whose sum is σ = 780646464. Its totient is φ = 772517520.

The previous prime is 776576627. The next prime is 776576687. The reversal of 776576641 is 146675677.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-776576641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (776576041) 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, 170986 + ... + 175468.

It is an arithmetic number, because the mean of its divisors is an integer number (97580808).

Almost surely, 2^776576641 is an apocalyptic number.

It is an amenable number.

776576641 is a deficient number, since it is larger than the sum of its proper divisors (4069823).

776576641 is a wasteful number, since it uses less digits than its factorization.

776576641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351.

The product of its digits is 1481760, while the sum is 49.

The square root of 776576641 is about 27867.1247350709. The cubic root of 776576641 is about 919.1677417502.

The spelling of 776576641 in words is "seven hundred seventy-six million, five hundred seventy-six thousand, six hundred forty-one".