76681671 has 16 divisors (see below), whose sum is σ = 111711360. Its totient is φ = 46401120.

The previous prime is 76681669. The next prime is 76681681. The reversal of 76681671 is 17618667.

It is not a de Polignac number, because 76681671 - 2¹ = 76681669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76681681) 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 15 ways as a sum of consecutive naturals, for example, 25956 + ... + 28758.

It is an arithmetic number, because the mean of its divisors is an integer number (6981960).

Almost surely, 2^76681671 is an apocalyptic number.

76681671 is a deficient number, since it is larger than the sum of its proper divisors (35029689).

76681671 is a wasteful number, since it uses less digits than its factorization.

76681671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646.

The product of its digits is 84672, while the sum is 42.

The square root of 76681671 is about 8756.8071236039. The cubic root of 76681671 is about 424.8450110749.

It can be divided in two parts, 7668 and 1671, that added together give a palindrome (9339).

The spelling of 76681671 in words is "seventy-six million, six hundred eighty-one thousand, six hundred seventy-one".