77706601 has 12 divisors (see below), whose sum is σ = 91112448. Its totient is φ = 66075912.

The previous prime is 77706593. The next prime is 77706611. The reversal of 77706601 is 10660777.

It is not a de Polignac number, because 77706601 - 2³ = 77706593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77706611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21 + ... + 12466.

It is an arithmetic number, because the mean of its divisors is an integer number (7592704).

Almost surely, 2^77706601 is an apocalyptic number.

It is an amenable number.

77706601 is a deficient number, since it is larger than the sum of its proper divisors (13405847).

77706601 is a wasteful number, since it uses less digits than its factorization.

77706601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12628 (or 12621 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 77706601 is about 8815.1347692477. The cubic root of 77706601 is about 426.7294712100.

The spelling of 77706601 in words is "seventy-seven million, seven hundred six thousand, six hundred one".