77013012 has 24 divisors (see below), whose sum is σ = 180028800. Its totient is φ = 25623616.

The previous prime is 77013011. The next prime is 77013017. The reversal of 77013012 is 21031077.

It is a self number, because there is not a number n which added to its sum of digits gives 77013012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77013011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (7501200).

Almost surely, 2^77013012 is an apocalyptic number.

It is an amenable number.

77013012 is an abundant number, since it is smaller than the sum of its proper divisors (103015788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77013012 is a wasteful number, since it uses less digits than its factorization.

77013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11855 (or 11853 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 77013012 is about 8775.7057835823. The cubic root of 77013012 is about 425.4560493276.

Adding to 77013012 its reverse (21031077), we get a palindrome (98044089).

The spelling of 77013012 in words is "seventy-seven million, thirteen thousand, twelve".