76388648 has 24 divisors (see below), whose sum is σ = 166613850. Its totient is φ = 32737824.

The previous prime is 76388629. The next prime is 76388693. The reversal of 76388648 is 84688367.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47637604 + 28751044 = 6902^2 + 5362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76388596 and 76388605.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 97043 + ... + 97826.

Almost surely, 2^76388648 is an apocalyptic number.

It is an amenable number.

76388648 is an abundant number, since it is smaller than the sum of its proper divisors (90225202).

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

76388648 is a wasteful number, since it uses less digits than its factorization.

76388648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194889 (or 194878 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 76388648 is about 8740.0599540278. The cubic root of 76388648 is about 424.3031681304.

The spelling of 76388648 in words is "seventy-six million, three hundred eighty-eight thousand, six hundred forty-eight".