77355532 has 12 divisors (see below), whose sum is σ = 141258096. Its totient is φ = 36996080.

The previous prime is 77355521. The next prime is 77355533. The reversal of 77355532 is 23555377.

It is a junction number, because it is equal to n+sod(n) for n = 77355491 and 77355500.

It is not an unprimeable number, because it can be changed into a prime (77355533) 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 in 3 ways as a sum of consecutive naturals, for example, 420319 + ... + 420502.

It is an arithmetic number, because the mean of its divisors is an integer number (11771508).

Almost surely, 2^77355532 is an apocalyptic number.

It is an amenable number.

77355532 is a deficient number, since it is larger than the sum of its proper divisors (63902564).

77355532 is a wasteful number, since it uses less digits than its factorization.

77355532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840848 (or 840846 counting only the distinct ones).

The product of its digits is 110250, while the sum is 37.

The square root of 77355532 is about 8795.1993723849. The cubic root of 77355532 is about 426.0858636536.

The spelling of 77355532 in words is "seventy-seven million, three hundred fifty-five thousand, five hundred thirty-two".