77630650 has 12 divisors (see below), whose sum is σ = 144393102. Its totient is φ = 31052240.

The previous prime is 77630591. The next prime is 77630659. The reversal of 77630650 is 5603677.

It can be written as a sum of positive squares in 3 ways, for example, as 37295449 + 40335201 = 6107^2 + 6351^2 .

It is not an unprimeable number, because it can be changed into a prime (77630659) 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 5 ways as a sum of consecutive naturals, for example, 776257 + ... + 776356.

Almost surely, 2^77630650 is an apocalyptic number.

77630650 is a deficient number, since it is larger than the sum of its proper divisors (66762452).

77630650 is a wasteful number, since it uses less digits than its factorization.

77630650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552625 (or 1552620 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 77630650 is about 8810.8257274787. The cubic root of 77630650 is about 426.5903963875.

The spelling of 77630650 in words is "seventy-seven million, six hundred thirty thousand, six hundred fifty".