77010081 has 8 divisors (see below), whose sum is σ = 102838560. Its totient is φ = 51260832.

The previous prime is 77010077. The next prime is 77010091. The reversal of 77010081 is 18001077.

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

It is not a de Polignac number, because 77010081 - 2² = 77010077 is a prime.

It is a super-2 number, since 2×77010081² = 11861105151253122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77010091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17500 + ... + 21453.

It is an arithmetic number, because the mean of its divisors is an integer number (12854820).

Almost surely, 2^77010081 is an apocalyptic number.

It is an amenable number.

77010081 is a deficient number, since it is larger than the sum of its proper divisors (25828479).

77010081 is a wasteful number, since it uses less digits than its factorization.

77010081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39615.

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 77010081 is about 8775.5387868780. The cubic root of 77010081 is about 425.4506518522.

The spelling of 77010081 in words is "seventy-seven million, ten thousand, eighty-one".