76217712 has 20 divisors (see below), whose sum is σ = 196895880. Its totient is φ = 25405888.

The previous prime is 76217693. The next prime is 76217717. The reversal of 76217712 is 21771267.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76217717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793887 + ... + 793982.

It is an arithmetic number, because the mean of its divisors is an integer number (9844794).

Almost surely, 2^76217712 is an apocalyptic number.

It is an amenable number.

76217712 is an abundant number, since it is smaller than the sum of its proper divisors (120678168).

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

76217712 is a wasteful number, since it uses less digits than its factorization.

76217712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587880 (or 1587874 counting only the distinct ones).

The product of its digits is 8232, while the sum is 33.

The square root of 76217712 is about 8730.2755970244. The cubic root of 76217712 is about 423.9864419540.

Adding to 76217712 its reverse (21771267), we get a palindrome (97988979).

The spelling of 76217712 in words is "seventy-six million, two hundred seventeen thousand, seven hundred twelve".