77609352 has 64 divisors (see below), whose sum is σ = 206599680. Its totient is φ = 24210432.

The previous prime is 77609341. The next prime is 77609377. The reversal of 77609352 is 25390677.

It is a self number, because there is not a number n which added to its sum of digits gives 77609352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90558 + ... + 91410.

It is an arithmetic number, because the mean of its divisors is an integer number (3228120).

Almost surely, 2^77609352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77609352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103299840).

77609352 is an abundant number, since it is smaller than the sum of its proper divisors (128990328).

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

77609352 is a wasteful number, since it uses less digits than its factorization.

77609352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 77609352 is about 8809.6170177823. The cubic root of 77609352 is about 426.5513810704.

The spelling of 77609352 in words is "seventy-seven million, six hundred nine thousand, three hundred fifty-two".