77099966 has 16 divisors (see below), whose sum is σ = 117357120. Its totient is φ = 37984800.

The previous prime is 77099959. The next prime is 77099969. The reversal of 77099966 is 66999077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77099969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47480 + ... + 49076.

It is an arithmetic number, because the mean of its divisors is an integer number (7334820).

Almost surely, 2^77099966 is an apocalyptic number.

77099966 is a deficient number, since it is larger than the sum of its proper divisors (40257154).

77099966 is a wasteful number, since it uses less digits than its factorization.

77099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 77099966 is about 8780.6586313328. The cubic root of 77099966 is about 425.6161140127.

The spelling of 77099966 in words is "seventy-seven million, ninety-nine thousand, nine hundred sixty-six".