972505211 has 2 divisors, whose sum is σ = 972505212. Its totient is φ = 972505210.

The previous prime is 972505133. The next prime is 972505223. The reversal of 972505211 is 112505279.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 972505211 - 2¹⁴ = 972488827 is a prime.

It is not a weakly prime, because it can be changed into another prime (972505231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486252605 + 486252606.

It is an arithmetic number, because the mean of its divisors is an integer number (486252606).

Almost surely, 2^972505211 is an apocalyptic number.

972505211 is a deficient number, since it is larger than the sum of its proper divisors (1).

972505211 is an equidigital number, since it uses as much as digits as its factorization.

972505211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 972505211 is about 31185.0158088785. The cubic root of 972505211 is about 990.7497673672.

The spelling of 972505211 in words is "nine hundred seventy-two million, five hundred five thousand, two hundred eleven".