923970217 has 2 divisors, whose sum is σ = 923970218. Its totient is φ = 923970216.

The previous prime is 923970211. The next prime is 923970239. The reversal of 923970217 is 712079329.

923970217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778912281 + 145057936 = 27909^2 + 12044^2 .

It is a cyclic number.

It is not a de Polignac number, because 923970217 - 2¹⁵ = 923937449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 923970217.

It is not a weakly prime, because it can be changed into another prime (923970211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461985108 + 461985109.

It is an arithmetic number, because the mean of its divisors is an integer number (461985109).

Almost surely, 2^923970217 is an apocalyptic number.

It is an amenable number.

923970217 is a deficient number, since it is larger than the sum of its proper divisors (1).

923970217 is an equidigital number, since it uses as much as digits as its factorization.

923970217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 923970217 is about 30396.8784088103. The cubic root of 923970217 is about 973.9858723866.

The spelling of 923970217 in words is "nine hundred twenty-three million, nine hundred seventy thousand, two hundred seventeen".