77713763 has 4 divisors (see below), whose sum is σ = 77748408. Its totient is φ = 77679120.

The previous prime is 77713759. The next prime is 77713777. The reversal of 77713763 is 36731777.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77713763 - 2² = 77713759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77713763.

It is not an unprimeable number, because it can be changed into a prime (77713723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13706 + ... + 18527.

It is an arithmetic number, because the mean of its divisors is an integer number (19437102).

Almost surely, 2^77713763 is an apocalyptic number.

77713763 is a deficient number, since it is larger than the sum of its proper divisors (34645).

77713763 is a wasteful number, since it uses less digits than its factorization.

77713763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34644.

The product of its digits is 129654, while the sum is 41.

The square root of 77713763 is about 8815.5409930418. The cubic root of 77713763 is about 426.7425809611.

The spelling of 77713763 in words is "seventy-seven million, seven hundred thirteen thousand, seven hundred sixty-three".