77763883 has 4 divisors (see below), whose sum is σ = 77812200. Its totient is φ = 77715568.

The previous prime is 77763869. The next prime is 77763893. The reversal of 77763883 is 38836777.

It is a happy number.

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

It is a 4-Lehmer number, since φ(77763883) divides (77763883-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 77763883 - 2¹⁷ = 77632811 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77763853) 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, 21658 + ... + 24991.

It is an arithmetic number, because the mean of its divisors is an integer number (19453050).

Almost surely, 2^77763883 is an apocalyptic number.

77763883 is a deficient number, since it is larger than the sum of its proper divisors (48317).

77763883 is a wasteful number, since it uses less digits than its factorization.

77763883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48316.

The product of its digits is 1185408, while the sum is 49.

The square root of 77763883 is about 8818.3832418420. The cubic root of 77763883 is about 426.8343010588.

The spelling of 77763883 in words is "seventy-seven million, seven hundred sixty-three thousand, eight hundred eighty-three".