77089906 has 8 divisors (see below), whose sum is σ = 115672284. Its totient is φ = 38532480.

The previous prime is 77089871. The next prime is 77089919. The reversal of 77089906 is 60998077.

It can be written as a sum of positive squares in 2 ways, for example, as 75846681 + 1243225 = 8709^2 + 1115^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7866 + ... + 14698.

Almost surely, 2^77089906 is an apocalyptic number.

77089906 is a deficient number, since it is larger than the sum of its proper divisors (38582378).

77089906 is a wasteful number, since it uses less digits than its factorization.

77089906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 77089906 is about 8780.0857626791. The cubic root of 77089906 is about 425.5976017505.

The spelling of 77089906 in words is "seventy-seven million, eighty-nine thousand, nine hundred six".