77505332 has 48 divisors (see below), whose sum is σ = 149882880. Its totient is φ = 34927200.

The previous prime is 77505287. The next prime is 77505347. The reversal of 77505332 is 23350577.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157607 + ... + 158097.

It is an arithmetic number, because the mean of its divisors is an integer number (3122560).

Almost surely, 2^77505332 is an apocalyptic number.

It is an amenable number.

77505332 is a deficient number, since it is larger than the sum of its proper divisors (72377548).

77505332 is a wasteful number, since it uses less digits than its factorization.

77505332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 77505332 is about 8803.7112628709. The cubic root of 77505332 is about 426.3607265883.

The spelling of 77505332 in words is "seventy-seven million, five hundred five thousand, three hundred thirty-two".