77607012 has 48 divisors (see below), whose sum is σ = 213635072. Its totient is φ = 21457440.

The previous prime is 77606953. The next prime is 77607017. The reversal of 77607012 is 21070677.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77607017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12298 + ... + 17505.

Almost surely, 2^77607012 is an apocalyptic number.

It is an amenable number.

77607012 is an abundant number, since it is smaller than the sum of its proper divisors (136028060).

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

77607012 is a wasteful number, since it uses less digits than its factorization.

77607012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29848 (or 29846 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 77607012 is about 8809.4842073756. The cubic root of 77607012 is about 426.5470940430.

Adding to 77607012 its reverse (21070677), we get a palindrome (98677689).

The spelling of 77607012 in words is "seventy-seven million, six hundred seven thousand, twelve".