77383853 has 4 divisors (see below), whose sum is σ = 77568960. Its totient is φ = 77198748.

The previous prime is 77383829. The next prime is 77383871. The reversal of 77383853 is 35838377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35838377 = 1093 ⋅32789.

It is a cyclic number.

It is not a de Polignac number, because 77383853 - 2¹⁶ = 77318317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77383883) 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 in 3 ways as a sum of consecutive naturals, for example, 91925 + ... + 92762.

It is an arithmetic number, because the mean of its divisors is an integer number (19392240).

Almost surely, 2^77383853 is an apocalyptic number.

It is an amenable number.

77383853 is a deficient number, since it is larger than the sum of its proper divisors (185107).

77383853 is a wasteful number, since it uses less digits than its factorization.

77383853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185106.

The product of its digits is 423360, while the sum is 44.

The square root of 77383853 is about 8796.8092510864. The cubic root of 77383853 is about 426.1378560799.

The spelling of 77383853 in words is "seventy-seven million, three hundred eighty-three thousand, eight hundred fifty-three".