72197203 has 4 divisors (see below), whose sum is σ = 77750848. Its totient is φ = 66643560.

The previous prime is 72197201. The next prime is 72197227. The reversal of 72197203 is 30279127.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72197203 - 2¹ = 72197201 is a prime.

It is a super-2 number, since 2×72197203² = 10424872242046418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72197201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2776803 + ... + 2776828.

It is an arithmetic number, because the mean of its divisors is an integer number (19437712).

Almost surely, 2^72197203 is an apocalyptic number.

72197203 is a deficient number, since it is larger than the sum of its proper divisors (5553645).

72197203 is a wasteful number, since it uses less digits than its factorization.

72197203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553644.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 72197203 is about 8496.8937265332. The cubic root of 72197203 is about 416.3962320520.

The spelling of 72197203 in words is "seventy-two million, one hundred ninety-seven thousand, two hundred three".