76531212 has 72 divisors (see below), whose sum is σ = 213778656. Its totient is φ = 22961664.

The previous prime is 76531199. The next prime is 76531223. The reversal of 76531212 is 21213567.

It is a happy number.

76531212 is a `hidden beast` number, since 7 + 653 + 1 + 2 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11358 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (2969148).

Almost surely, 2^76531212 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 76531212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106889328).

76531212 is an abundant number, since it is smaller than the sum of its proper divisors (137247444).

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

76531212 is a wasteful number, since it uses less digits than its factorization.

76531212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487 (or 5482 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 76531212 is about 8748.2119315892. The cubic root of 76531212 is about 424.5669628451.

Adding to 76531212 its reverse (21213567), we get a palindrome (97744779).

The spelling of 76531212 in words is "seventy-six million, five hundred thirty-one thousand, two hundred twelve".