72071704 has 16 divisors (see below), whose sum is σ = 143083800. Its totient is φ = 33916032.

The previous prime is 72071677. The next prime is 72071711. The reversal of 72071704 is 40717027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264834 + ... + 265105.

Almost surely, 2^72071704 is an apocalyptic number.

It is an amenable number.

72071704 is a deficient number, since it is larger than the sum of its proper divisors (71012096).

72071704 is a wasteful number, since it uses less digits than its factorization.

72071704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529962 (or 529958 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 72071704 is about 8489.5055215248. The cubic root of 72071704 is about 416.1548209487.

It can be divided in two parts, 7207 and 1704, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 72071704 in words is "seventy-two million, seventy-one thousand, seven hundred four".