71212704 has 48 divisors (see below), whose sum is σ = 192971520. Its totient is φ = 22970880.

The previous prime is 71212699. The next prime is 71212709. The reversal of 71212704 is 40721217.

It is an interprime number because it is at equal distance from previous prime (71212699) and next prime (71212709).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (71212709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8989 + ... + 14940.

It is an arithmetic number, because the mean of its divisors is an integer number (4020240).

Almost surely, 2^71212704 is an apocalyptic number.

It is an amenable number.

71212704 is an abundant number, since it is smaller than the sum of its proper divisors (121758816).

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

71212704 is a wasteful number, since it uses less digits than its factorization.

71212704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23973 (or 23965 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 71212704 is about 8438.7619945108. The cubic root of 71212704 is about 414.4948690338.

The spelling of 71212704 in words is "seventy-one million, two hundred twelve thousand, seven hundred four".