77443332 has 48 divisors (see below), whose sum is σ = 187353600. Its totient is φ = 24871680.

The previous prime is 77443309. The next prime is 77443337. The reversal of 77443332 is 23334477.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 77443293 and 77443302.

It is not an unprimeable number, because it can be changed into a prime (77443337) 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 15 ways as a sum of consecutive naturals, for example, 151894 + ... + 152402.

It is an arithmetic number, because the mean of its divisors is an integer number (3903200).

Almost surely, 2^77443332 is an apocalyptic number.

It is an amenable number.

77443332 is an abundant number, since it is smaller than the sum of its proper divisors (109910268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77443332 is a wasteful number, since it uses less digits than its factorization.

77443332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its digits is 42336, while the sum is 33.

The square root of 77443332 is about 8800.1893161454. The cubic root of 77443332 is about 426.2470078880.

The spelling of 77443332 in words is "seventy-seven million, four hundred forty-three thousand, three hundred thirty-two".