77027412 has 72 divisors (see below), whose sum is σ = 228100320. Its totient is φ = 20005440.

The previous prime is 77027381. The next prime is 77027413. The reversal of 77027412 is 21472077.

It is a self number, because there is not a number n which added to its sum of digits gives 77027412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77027413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (3168060).

Almost surely, 2^77027412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77027412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114050160).

77027412 is an abundant number, since it is smaller than the sum of its proper divisors (151072908).

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

77027412 is a wasteful number, since it uses less digits than its factorization.

77027412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941 (or 11932 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 77027412 is about 8776.5261920648. The cubic root of 77027412 is about 425.4825651294.

Adding to 77027412 its reverse (21472077), we get a palindrome (98499489).

It can be divided in two parts, 770 and 27412, that added together give a palindrome (28182).

The spelling of 77027412 in words is "seventy-seven million, twenty-seven thousand, four hundred twelve".