76666422 has 16 divisors (see below), whose sum is σ = 175237632. Its totient is φ = 21904680.

The previous prime is 76666417. The next prime is 76666427. The reversal of 76666422 is 22466667.

It is an interprime number because it is at equal distance from previous prime (76666417) and next prime (76666427).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76666427) 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 7 ways as a sum of consecutive naturals, for example, 912654 + ... + 912737.

It is an arithmetic number, because the mean of its divisors is an integer number (10952352).

Almost surely, 2^76666422 is an apocalyptic number.

76666422 is an abundant number, since it is smaller than the sum of its proper divisors (98571210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76666422 is a wasteful number, since it uses less digits than its factorization.

76666422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825403.

The product of its digits is 145152, while the sum is 39.

The square root of 76666422 is about 8755.9363862468. The cubic root of 76666422 is about 424.8168474952.

The spelling of 76666422 in words is "seventy-six million, six hundred sixty-six thousand, four hundred twenty-two".