1864901 has 2 divisors, whose sum is σ = 1864902. Its totient is φ = 1864900.

The previous prime is 1864897. The next prime is 1864921. The reversal of 1864901 is 1094681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1442401 + 422500 = 1201^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1864901 - 2² = 1864897 is a prime.

It is equal to p₁₃₉₅₉₂ and since 1864901 and 139592 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1864921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932450 + 932451.

It is an arithmetic number, because the mean of its divisors is an integer number (932451).

2^1864901 is an apocalyptic number.

It is an amenable number.

1864901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864901 is an equidigital number, since it uses as much as digits as its factorization.

1864901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1864901 is about 1365.6137814185. The cubic root of 1864901 is about 123.0888159281.

The spelling of 1864901 in words is "one million, eight hundred sixty-four thousand, nine hundred one".