71752645 has 16 divisors (see below), whose sum is σ = 91995840. Its totient is φ = 53564544.

The previous prime is 71752613. The next prime is 71752651. The reversal of 71752645 is 54625717.

It is a cyclic number.

It is not a de Polignac number, because 71752645 - 2⁵ = 71752613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729 + ... + 12001.

It is an arithmetic number, because the mean of its divisors is an integer number (5749740).

Almost surely, 2^71752645 is an apocalyptic number.

It is an amenable number.

71752645 is a deficient number, since it is larger than the sum of its proper divisors (20243195).

71752645 is a wasteful number, since it uses less digits than its factorization.

71752645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11364.

The product of its digits is 58800, while the sum is 37.

The square root of 71752645 is about 8470.6933010232. The cubic root of 71752645 is about 415.5398113984.

The spelling of 71752645 in words is "seventy-one million, seven hundred fifty-two thousand, six hundred forty-five".