72047701 has 16 divisors (see below), whose sum is σ = 81321408. Its totient is φ = 63260800.

The previous prime is 72047699. The next prime is 72047711. The reversal of 72047701 is 10774027.

It is a cyclic number.

It is not a de Polignac number, because 72047701 - 2¹ = 72047699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72047701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72047711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47511 + ... + 49003.

It is an arithmetic number, because the mean of its divisors is an integer number (5082588).

Almost surely, 2^72047701 is an apocalyptic number.

It is an amenable number.

72047701 is a deficient number, since it is larger than the sum of its proper divisors (9273707).

72047701 is a wasteful number, since it uses less digits than its factorization.

72047701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652.

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

The square root of 72047701 is about 8488.0917172236. The cubic root of 72047701 is about 416.1086166238.

The spelling of 72047701 in words is "seventy-two million, forty-seven thousand, seven hundred one".