72044147 has 8 divisors (see below), whose sum is σ = 87179616. Its totient is φ = 58119552.

The previous prime is 72044101. The next prime is 72044153. The reversal of 72044147 is 74144027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72044147 - 2⁸ = 72043891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72044177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302588 + ... + 302825.

It is an arithmetic number, because the mean of its divisors is an integer number (10897452).

Almost surely, 2^72044147 is an apocalyptic number.

72044147 is a deficient number, since it is larger than the sum of its proper divisors (15135469).

72044147 is a wasteful number, since it uses less digits than its factorization.

72044147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605437.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 72044147 is about 8487.8823625213. The cubic root of 72044147 is about 416.1017745163.

The spelling of 72044147 in words is "seventy-two million, forty-four thousand, one hundred forty-seven".