76561606 has 8 divisors (see below), whose sum is σ = 125282664. Its totient is φ = 34800720.

The previous prime is 76561601. The next prime is 76561609. The reversal of 76561606 is 60616567.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76561601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1740015 + ... + 1740058.

It is an arithmetic number, because the mean of its divisors is an integer number (15660333).

Almost surely, 2^76561606 is an apocalyptic number.

76561606 is a deficient number, since it is larger than the sum of its proper divisors (48721058).

76561606 is a wasteful number, since it uses less digits than its factorization.

76561606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480086.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 76561606 is about 8749.9489141366. The cubic root of 76561606 is about 424.6231603103.

The spelling of 76561606 in words is "seventy-six million, five hundred sixty-one thousand, six hundred six".