77605652 has 12 divisors (see below), whose sum is σ = 142957920. Its totient is φ = 36760536.

The previous prime is 77605651. The next prime is 77605667. The reversal of 77605652 is 25650677.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77605651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510488 + ... + 510639.

It is an arithmetic number, because the mean of its divisors is an integer number (11913160).

Almost surely, 2^77605652 is an apocalyptic number.

It is an amenable number.

77605652 is a deficient number, since it is larger than the sum of its proper divisors (65352268).

77605652 is a wasteful number, since it uses less digits than its factorization.

77605652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021150 (or 1021148 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 77605652 is about 8809.4070175012. The cubic root of 77605652 is about 426.5446023977.

The spelling of 77605652 in words is "seventy-seven million, six hundred five thousand, six hundred fifty-two".