1848949 has 2 divisors, whose sum is σ = 1848950. Its totient is φ = 1848948.

The previous prime is 1848943. The next prime is 1848983. The reversal of 1848949 is 9498481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1703025 + 145924 = 1305^2 + 382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1848949 is a prime.

It is a super-2 number, since 2×1848949² = 6837224809202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1848943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924474 + 924475.

It is an arithmetic number, because the mean of its divisors is an integer number (924475).

2^1848949 is an apocalyptic number.

It is an amenable number.

1848949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1848949 is an equidigital number, since it uses as much as digits as its factorization.

1848949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 1848949 is about 1359.7606407011. The cubic root of 1848949 is about 122.7368512123.

The spelling of 1848949 in words is "one million, eight hundred forty-eight thousand, nine hundred forty-nine".