77007716 has 6 divisors (see below), whose sum is σ = 134763510. Its totient is φ = 38503856.

The previous prime is 77007683. The next prime is 77007719. The reversal of 77007716 is 61770077.

It can be written as a sum of positive squares in only one way, i.e., 46977316 + 30030400 = 6854^2 + 5480^2 .

It is not an unprimeable number, because it can be changed into a prime (77007719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9625961 + ... + 9625968.

It is an arithmetic number, because the mean of its divisors is an integer number (22460585).

Almost surely, 2^77007716 is an apocalyptic number.

It is an amenable number.

77007716 is a deficient number, since it is larger than the sum of its proper divisors (57755794).

77007716 is a wasteful number, since it uses less digits than its factorization.

77007716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251933 (or 19251931 counting only the distinct ones).

The product of its (nonzero) digits is 14406, while the sum is 35.

The square root of 77007716 is about 8775.4040362823. The cubic root of 77007716 is about 425.4462965736.

The spelling of 77007716 in words is "seventy-seven million, seven thousand, seven hundred sixteen".