77960338 has 4 divisors (see below), whose sum is σ = 116940510. Its totient is φ = 38980168.

The previous prime is 77960293. The next prime is 77960339. The reversal of 77960338 is 83306977.

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

It can be written as a sum of positive squares in only one way, i.e., 76440049 + 1520289 = 8743^2 + 1233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77960294 and 77960303.

It is not an unprimeable number, because it can be changed into a prime (77960339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19490083 + ... + 19490086.

Almost surely, 2^77960338 is an apocalyptic number.

77960338 is a deficient number, since it is larger than the sum of its proper divisors (38980172).

77960338 is a wasteful number, since it uses less digits than its factorization.

77960338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38980171.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 77960338 is about 8829.5151622272. The cubic root of 77960338 is about 427.1934361528.

The spelling of 77960338 in words is "seventy-seven million, nine hundred sixty thousand, three hundred thirty-eight".