1945799 has 2 divisors, whose sum is σ = 1945800. Its totient is φ = 1945798.

The previous prime is 1945781. The next prime is 1945817. The reversal of 1945799 is 9975491.

It is a balanced prime because it is at equal distance from previous prime (1945781) and next prime (1945817).

It is a cyclic number.

It is not a de Polignac number, because 1945799 - 2²⁰ = 897223 is a prime.

It is a super-2 number, since 2×1945799² = 7572267496802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1945709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972899 + 972900.

It is an arithmetic number, because the mean of its divisors is an integer number (972900).

2^1945799 is an apocalyptic number.

1945799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945799 is an equidigital number, since it uses as much as digits as its factorization.

1945799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 44.

The square root of 1945799 is about 1394.9189940638. The cubic root of 1945799 is about 124.8435161843.

It can be divided in two parts, 1945 and 799, that added together give a cube (2744 = 14³).

The spelling of 1945799 in words is "one million, nine hundred forty-five thousand, seven hundred ninety-nine".