77386 has 4 divisors (see below), whose sum is σ = 116082. Its totient is φ = 38692.

The previous prime is 77383. The next prime is 77417. The reversal of 77386 is 68377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68377 = 101 ⋅677.

It can be written as a sum of positive squares in only one way, i.e., 53361 + 24025 = 231^2 + 155^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (77383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19345 + ... + 19348.

2⁷⁷³⁸⁶ is an apocalyptic number.

77386 is a deficient number, since it is larger than the sum of its proper divisors (38696).

77386 is a wasteful number, since it uses less digits than its factorization.

77386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38695.

The product of its digits is 7056, while the sum is 31.

The square root of 77386 is about 278.1833927466. The cubic root of 77386 is about 42.6141797081.

Subtracting from 77386 its reverse (68377), we obtain a palindrome (9009).

It can be divided in two parts, 7738 and 6, that added together give a square (7744 = 88²).

The spelling of 77386 in words is "seventy-seven thousand, three hundred eighty-six".