77893366 has 4 divisors (see below), whose sum is σ = 116840052. Its totient is φ = 38946682.

The previous prime is 77893363. The next prime is 77893381. The reversal of 77893366 is 66339877.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66339877 = 211 ⋅314407.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (77893363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19473340 + ... + 19473343.

It is an arithmetic number, because the mean of its divisors is an integer number (29210013).

Almost surely, 2^77893366 is an apocalyptic number.

77893366 is a deficient number, since it is larger than the sum of its proper divisors (38946686).

77893366 is a wasteful number, since it uses less digits than its factorization.

77893366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38946685.

The product of its digits is 1143072, while the sum is 49.

The square root of 77893366 is about 8825.7218401670. The cubic root of 77893366 is about 427.0710739536.

The spelling of 77893366 in words is "seventy-seven million, eight hundred ninety-three thousand, three hundred sixty-six".