1948867 has 2 divisors, whose sum is σ = 1948868. Its totient is φ = 1948866.

The previous prime is 1948861. The next prime is 1948883. The reversal of 1948867 is 7688491.

It is a weak prime.

It is an emirp because it is prime and its reverse (7688491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948867 - 2¹⁵ = 1916099 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1948861) 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, 974433 + 974434.

It is an arithmetic number, because the mean of its divisors is an integer number (974434).

2^1948867 is an apocalyptic number.

1948867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948867 is an equidigital number, since it uses as much as digits as its factorization.

1948867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 1948867 is about 1396.0182663561. The cubic root of 1948867 is about 124.9090965752.

The spelling of 1948867 in words is "one million, nine hundred forty-eight thousand, eight hundred sixty-seven".