77730634 has 8 divisors (see below), whose sum is σ = 122732640. Its totient is φ = 36819756.

The previous prime is 77730623. The next prime is 77730637. The reversal of 77730634 is 43603777.

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

It is a junction number, because it is equal to n+sod(n) for n = 77730593 and 77730602.

It is not an unprimeable number, because it can be changed into a prime (77730637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022734 + ... + 1022809.

It is an arithmetic number, because the mean of its divisors is an integer number (15341580).

Almost surely, 2^77730634 is an apocalyptic number.

77730634 is a deficient number, since it is larger than the sum of its proper divisors (45002006).

77730634 is a wasteful number, since it uses less digits than its factorization.

77730634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045564.

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 77730634 is about 8816.4978307716. The cubic root of 77730634 is about 426.7734594605.

The spelling of 77730634 in words is "seventy-seven million, seven hundred thirty thousand, six hundred thirty-four".