77230612 has 12 divisors (see below), whose sum is σ = 135296896. Its totient is φ = 38574360.

The previous prime is 77230603. The next prime is 77230613. The reversal of 77230612 is 21603277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77230613) 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, 5778 + ... + 13705.

Almost surely, 2^77230612 is an apocalyptic number.

It is an amenable number.

77230612 is a deficient number, since it is larger than the sum of its proper divisors (58066284).

77230612 is a wasteful number, since it uses less digits than its factorization.

77230612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20478 (or 20476 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 77230612 is about 8788.0949016269. The cubic root of 77230612 is about 425.8563807194.

Adding to 77230612 its reverse (21603277), we get a palindrome (98833889).

The spelling of 77230612 in words is "seventy-seven million, two hundred thirty thousand, six hundred twelve".