77232012 has 48 divisors (see below), whose sum is σ = 211717632. Its totient is φ = 21602880.

The previous prime is 77231981. The next prime is 77232013. The reversal of 77232012 is 21023277.

It is not an unprimeable number, because it can be changed into a prime (77232013) 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, 20788 + ... + 24219.

It is an arithmetic number, because the mean of its divisors is an integer number (4410784).

Almost surely, 2^77232012 is an apocalyptic number.

It is an amenable number.

77232012 is an abundant number, since it is smaller than the sum of its proper divisors (134485620).

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

77232012 is a wasteful number, since it uses less digits than its factorization.

77232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45038 (or 45036 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 77232012 is about 8788.1745544794. The cubic root of 77232012 is about 425.8589539449.

Adding to 77232012 its reverse (21023277), we get a palindrome (98255289).

The spelling of 77232012 in words is "seventy-seven million, two hundred thirty-two thousand, twelve".