77830616 has 8 divisors (see below), whose sum is σ = 145932420. Its totient is φ = 38915304.

The previous prime is 77830601. The next prime is 77830619. The reversal of 77830616 is 61603877.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 77830616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77830619) 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 as a sum of consecutive naturals, namely, 4864406 + ... + 4864421.

Almost surely, 2^77830616 is an apocalyptic number.

It is an amenable number.

77830616 is a deficient number, since it is larger than the sum of its proper divisors (68101804).

77830616 is a wasteful number, since it uses less digits than its factorization.

77830616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9728833 (or 9728829 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 77830616 is about 8822.1661739054. The cubic root of 77830616 is about 426.9563619624.

The spelling of 77830616 in words is "seventy-seven million, eight hundred thirty thousand, six hundred sixteen".