77470012 has 12 divisors (see below), whose sum is σ = 135854320. Its totient is φ = 38654496.

The previous prime is 77469989. The next prime is 77470039. The reversal of 77470012 is 21007477.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17937 + ... + 21832.

Almost surely, 2^77470012 is an apocalyptic number.

It is an amenable number.

77470012 is a deficient number, since it is larger than the sum of its proper divisors (58384308).

77470012 is a wasteful number, since it uses less digits than its factorization.

77470012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40260 (or 40258 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 77470012 is about 8801.7050620888. The cubic root of 77470012 is about 426.2959510493.

Adding to 77470012 its reverse (21007477), we get a palindrome (98477489).

The spelling of 77470012 in words is "seventy-seven million, four hundred seventy thousand, twelve".