76630509 has 32 divisors (see below), whose sum is σ = 121904640. Its totient is φ = 47402496.

The previous prime is 76630501. The next prime is 76630559. The reversal of 76630509 is 90503667.

It is a happy number.

It is not a de Polignac number, because 76630509 - 2³ = 76630501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76630501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 32364 + ... + 34650.

It is an arithmetic number, because the mean of its divisors is an integer number (3809520).

Almost surely, 2^76630509 is an apocalyptic number.

It is an amenable number.

76630509 is a deficient number, since it is larger than the sum of its proper divisors (45274131).

76630509 is a wasteful number, since it uses less digits than its factorization.

76630509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 76630509 is about 8753.8853659389. The cubic root of 76630509 is about 424.7505045432.

The spelling of 76630509 in words is "seventy-six million, six hundred thirty thousand, five hundred nine".