72043801 has 16 divisors (see below), whose sum is σ = 79963200. Its totient is φ = 64628928.

The previous prime is 72043789. The next prime is 72043823. The reversal of 72043801 is 10834027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72043801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72043861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27970 + ... + 30436.

It is an arithmetic number, because the mean of its divisors is an integer number (4997700).

Almost surely, 2^72043801 is an apocalyptic number.

It is an amenable number.

72043801 is a deficient number, since it is larger than the sum of its proper divisors (7919399).

72043801 is a wasteful number, since it uses less digits than its factorization.

72043801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 72043801 is about 8487.8619804990. The cubic root of 72043801 is about 416.1011083903.

Adding to 72043801 its reverse (10834027), we get a palindrome (82877828).

It can be divided in two parts, 720 and 43801, that added together give a square (44521 = 211²).

The spelling of 72043801 in words is "seventy-two million, forty-three thousand, eight hundred one".