77610132 has 18 divisors (see below), whose sum is σ = 196181258. Its totient is φ = 25870032.

The previous prime is 77610131. The next prime is 77610139. The reversal of 77610132 is 23101677.

It can be written as a sum of positive squares in only one way, i.e., 76842756 + 767376 = 8766^2 + 876^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 77610096 and 77610105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77610131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1077883 + ... + 1077954.

Almost surely, 2^77610132 is an apocalyptic number.

It is an amenable number.

77610132 is an abundant number, since it is smaller than the sum of its proper divisors (118571126).

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

77610132 is a wasteful number, since it uses less digits than its factorization.

77610132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155847 (or 2155842 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 77610132 is about 8809.6612874730. The cubic root of 77610132 is about 426.5528100604.

The spelling of 77610132 in words is "seventy-seven million, six hundred ten thousand, one hundred thirty-two".