1893361 has 2 divisors, whose sum is σ = 1893362. Its totient is φ = 1893360.

The previous prime is 1893349. The next prime is 1893371. The reversal of 1893361 is 1633981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 87025 = 1344^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1893361 - 2⁵ = 1893329 is a prime.

It is a Chen prime.

1893361 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1893371) 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, 946680 + 946681.

It is an arithmetic number, because the mean of its divisors is an integer number (946681).

2^1893361 is an apocalyptic number.

1893361 is the 736-th centered heptagonal number.

It is an amenable number.

1893361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1893361 is an equidigital number, since it uses as much as digits as its factorization.

1893361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 1893361 is about 1375.9945494078. The cubic root of 1893361 is about 123.7118046936.

The spelling of 1893361 in words is "one million, eight hundred ninety-three thousand, three hundred sixty-one".