72284003 has 8 divisors (see below), whose sum is σ = 78966576. Its totient is φ = 65620000.

The previous prime is 72283993. The next prime is 72284011. The reversal of 72284003 is 30048227.

It is a Cunningham number, because it is equal to 8502²-1.

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 72284003 - 2⁴ = 72283987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72284063) 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, 4253 + ... + 12753.

It is an arithmetic number, because the mean of its divisors is an integer number (9870822).

Almost surely, 2^72284003 is an apocalyptic number.

72284003 is a deficient number, since it is larger than the sum of its proper divisors (6682573).

72284003 is a wasteful number, since it uses less digits than its factorization.

72284003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 72284003 is about 8501.9999411903. Note that the first 4 decimals coincide. The cubic root of 72284003 is about 416.5630377664.

The spelling of 72284003 in words is "seventy-two million, two hundred eighty-four thousand, three".