972104221 has 8 divisors (see below), whose sum is σ = 1071411264. Its totient is φ = 874619520.

The previous prime is 972104209. The next prime is 972104227. The reversal of 972104221 is 122401279.

972104221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 972104221 - 2¹³ = 972096029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 972104221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972104227) 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, 454465 + ... + 456598.

It is an arithmetic number, because the mean of its divisors is an integer number (133926408).

Almost surely, 2^972104221 is an apocalyptic number.

It is an amenable number.

972104221 is a deficient number, since it is larger than the sum of its proper divisors (99307043).

972104221 is a wasteful number, since it uses less digits than its factorization.

972104221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911171.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 972104221 is about 31178.5859365046. The cubic root of 972104221 is about 990.6135777405.

The spelling of 972104221 in words is "nine hundred seventy-two million, one hundred four thousand, two hundred twenty-one".