71393704 has 8 divisors (see below), whose sum is σ = 133863210. Its totient is φ = 35696848.

The previous prime is 71393677. The next prime is 71393711. The reversal of 71393704 is 40739317.

It can be written as a sum of positive squares in only one way, i.e., 67272804 + 4120900 = 8202^2 + 2030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 71393704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4462099 + ... + 4462114.

Almost surely, 2^71393704 is an apocalyptic number.

It is an amenable number.

71393704 is a deficient number, since it is larger than the sum of its proper divisors (62469506).

71393704 is a wasteful number, since it uses less digits than its factorization.

71393704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924219 (or 8924215 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 71393704 is about 8449.4795105971. The cubic root of 71393704 is about 414.8457432210.

The spelling of 71393704 in words is "seventy-one million, three hundred ninety-three thousand, seven hundred four".