972044247 has 4 divisors (see below), whose sum is σ = 1296059000. Its totient is φ = 648029496.

The previous prime is 972044219. The next prime is 972044251. The reversal of 972044247 is 742440279.

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

It is not a de Polignac number, because 972044247 - 2¹² = 972040151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972044257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162007372 + ... + 162007377.

It is an arithmetic number, because the mean of its divisors is an integer number (324014750).

Almost surely, 2^972044247 is an apocalyptic number.

972044247 is a deficient number, since it is larger than the sum of its proper divisors (324014753).

972044247 is a wasteful number, since it uses less digits than its factorization.

972044247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324014752.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 972044247 is about 31177.6241397577. The cubic root of 972044247 is about 990.5932053431.

The spelling of 972044247 in words is "nine hundred seventy-two million, forty-four thousand, two hundred forty-seven".