1799261 has 2 divisors, whose sum is σ = 1799262. Its totient is φ = 1799260.

The previous prime is 1799251. The next prime is 1799269. The reversal of 1799261 is 1629971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416100 + 383161 = 1190^2 + 619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1799261 is a prime.

It is a super-2 number, since 2×1799261² = 6474680292242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1799269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899630 + 899631.

It is an arithmetic number, because the mean of its divisors is an integer number (899631).

2^1799261 is an apocalyptic number.

It is an amenable number.

1799261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1799261 is an equidigital number, since it uses as much as digits as its factorization.

1799261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The square root of 1799261 is about 1341.3653491872. The cubic root of 1799261 is about 121.6273904206.

The spelling of 1799261 in words is "one million, seven hundred ninety-nine thousand, two hundred sixty-one".