77081001 has 8 divisors (see below), whose sum is σ = 102835200. Its totient is φ = 51357072.

The previous prime is 77080979. The next prime is 77081047. The reversal of 77081001 is 10018077.

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

It is not a de Polignac number, because 77081001 - 2¹⁸ = 76818857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77081051) 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, 745 + ... + 12438.

It is an arithmetic number, because the mean of its divisors is an integer number (12854400).

Almost surely, 2^77081001 is an apocalyptic number.

It is an amenable number.

77081001 is a deficient number, since it is larger than the sum of its proper divisors (25754199).

77081001 is a wasteful number, since it uses less digits than its factorization.

77081001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15135.

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

The square root of 77081001 is about 8779.5786345359. The cubic root of 77081001 is about 425.5812135583.

Adding to 77081001 its reverse (10018077), we get a palindrome (87099078).

The spelling of 77081001 in words is "seventy-seven million, eighty-one thousand, one".