77109650 has 12 divisors (see below), whose sum is σ = 143424042. Its totient is φ = 30843840.

The previous prime is 77109649. The next prime is 77109667. The reversal of 77109650 is 5690177.

It can be written as a sum of positive squares in 3 ways, for example, as 71961289 + 5148361 = 8483^2 + 2269^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77109650.

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 5 ways as a sum of consecutive naturals, for example, 771047 + ... + 771146.

Almost surely, 2^77109650 is an apocalyptic number.

77109650 is a deficient number, since it is larger than the sum of its proper divisors (66314392).

77109650 is a wasteful number, since it uses less digits than its factorization.

77109650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542205 (or 1542200 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 77109650 is about 8781.2100532899. The cubic root of 77109650 is about 425.6339328441.

The spelling of 77109650 in words is "seventy-seven million, one hundred nine thousand, six hundred fifty".