1954217 has 2 divisors, whose sum is σ = 1954218. Its totient is φ = 1954216.

The previous prime is 1954193. The next prime is 1954231. The reversal of 1954217 is 7124591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1628176 + 326041 = 1276^2 + 571^2 .

It is an emirp because it is prime and its reverse (7124591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1954217 - 2⁶ = 1954153 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5⁹ + 4⁵ + 2³ + 1 + 7² .

It is a self number, because there is not a number n which added to its sum of digits gives 1954217.

It is not a weakly prime, because it can be changed into another prime (1954237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977108 + 977109.

It is an arithmetic number, because the mean of its divisors is an integer number (977109).

2^1954217 is an apocalyptic number.

It is an amenable number.

1954217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954217 is an equidigital number, since it uses as much as digits as its factorization.

1954217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

The square root of 1954217 is about 1397.9331171412. The cubic root of 1954217 is about 125.0232916597.

The spelling of 1954217 in words is "one million, nine hundred fifty-four thousand, two hundred seventeen".