77630443 has 8 divisors (see below), whose sum is σ = 84751920. Its totient is φ = 70519680.

The previous prime is 77630431. The next prime is 77630453. The reversal of 77630443 is 34403677.

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

It is not a de Polignac number, because 77630443 - 2⁹ = 77629931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77630399 and 77630408.

It is not an unprimeable number, because it can be changed into a prime (77630453) 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 7 ways as a sum of consecutive naturals, for example, 24663 + ... + 27631.

It is an arithmetic number, because the mean of its divisors is an integer number (10593990).

Almost surely, 2^77630443 is an apocalyptic number.

77630443 is a deficient number, since it is larger than the sum of its proper divisors (7121477).

77630443 is a wasteful number, since it uses less digits than its factorization.

77630443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 77630443 is about 8810.8139805582. The cubic root of 77630443 is about 426.5900172233.

The spelling of 77630443 in words is "seventy-seven million, six hundred thirty thousand, four hundred forty-three".