1930417 has 2 divisors, whose sum is σ = 1930418. Its totient is φ = 1930416.

The previous prime is 1930391. The next prime is 1930427. The reversal of 1930417 is 7140391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1157776 + 772641 = 1076^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930417 - 2⁷ = 1930289 is a prime.

1930417 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1930391 and 1930400.

It is not a weakly prime, because it can be changed into another prime (1930427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965208 + 965209.

It is an arithmetic number, because the mean of its divisors is an integer number (965209).

2^1930417 is an apocalyptic number.

It is an amenable number.

1930417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930417 is an equidigital number, since it uses as much as digits as its factorization.

1930417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1930417 is about 1389.3944724231. The cubic root of 1930417 is about 124.5136730090.

It can be divided in two parts, 19304 and 17, that added together give a square (19321 = 139²).

The spelling of 1930417 in words is "one million, nine hundred thirty thousand, four hundred seventeen".