71200004 has 6 divisors (see below), whose sum is σ = 124600014. Its totient is φ = 35600000.

The previous prime is 71200001. The next prime is 71200009. The reversal of 71200004 is 40000217.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46895104 + 24304900 = 6848^2 + 4930^2 .

It is not an unprimeable number, because it can be changed into a prime (71200001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8899997 + ... + 8900004.

It is an arithmetic number, because the mean of its divisors is an integer number (20766669).

Almost surely, 2^71200004 is an apocalyptic number.

It is an amenable number.

71200004 is a deficient number, since it is larger than the sum of its proper divisors (53400010).

71200004 is a wasteful number, since it uses less digits than its factorization.

71200004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17800005 (or 17800003 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 71200004 is about 8438.0094809143. The cubic root of 71200004 is about 414.4702273735.

The spelling of 71200004 in words is "seventy-one million, two hundred thousand, four".