1964917 has 2 divisors, whose sum is σ = 1964918. Its totient is φ = 1964916.

The previous prime is 1964899. The next prime is 1964927. The reversal of 1964917 is 7194691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962801 + 2116 = 1401^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 1964917 - 2⁷ = 1964789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1964927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982458 + 982459.

It is an arithmetic number, because the mean of its divisors is an integer number (982459).

2^1964917 is an apocalyptic number.

It is an amenable number.

1964917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964917 is an equidigital number, since it uses as much as digits as its factorization.

1964917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 37.

The square root of 1964917 is about 1401.7549714554. The cubic root of 1964917 is about 125.2510580878.

The spelling of 1964917 in words is "one million, nine hundred sixty-four thousand, nine hundred seventeen".