71749204 has 6 divisors (see below), whose sum is σ = 125561114. Its totient is φ = 35874600.

The previous prime is 71749201. The next prime is 71749207. The reversal of 71749204 is 40294717.

It is an interprime number because it is at equal distance from previous prime (71749201) and next prime (71749207).

It can be written as a sum of positive squares in only one way, i.e., 44916804 + 26832400 = 6702^2 + 5180^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71749204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71749201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8968647 + ... + 8968654.

Almost surely, 2^71749204 is an apocalyptic number.

It is an amenable number.

71749204 is a deficient number, since it is larger than the sum of its proper divisors (53811910).

71749204 is a wasteful number, since it uses less digits than its factorization.

71749204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937305 (or 17937303 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 71749204 is about 8470.4901865240. The cubic root of 71749204 is about 415.5331686916.

The spelling of 71749204 in words is "seventy-one million, seven hundred forty-nine thousand, two hundred four".