1858741 has 2 divisors, whose sum is σ = 1858742. Its totient is φ = 1858740.

The previous prime is 1858739. The next prime is 1858757. The reversal of 1858741 is 1478581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 286225 = 1254^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1858741 - 2¹ = 1858739 is a prime.

Together with 1858739, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

1858741 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1858697 and 1858706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1858711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 929370 + 929371.

It is an arithmetic number, because the mean of its divisors is an integer number (929371).

2^1858741 is an apocalyptic number.

It is an amenable number.

1858741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1858741 is an equidigital number, since it uses as much as digits as its factorization.

1858741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 34.

The square root of 1858741 is about 1363.3565197702. The cubic root of 1858741 is about 122.9531405435.

The spelling of 1858741 in words is "one million, eight hundred fifty-eight thousand, seven hundred forty-one".