1372849 has 2 divisors, whose sum is σ = 1372850. Its totient is φ = 1372848.

The previous prime is 1372843. The next prime is 1372867. The reversal of 1372849 is 9482731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 692224 + 680625 = 832^2 + 825^2 .

It is an emirp because it is prime and its reverse (9482731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372843) 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, 686424 + 686425.

It is an arithmetic number, because the mean of its divisors is an integer number (686425).

2^1372849 is an apocalyptic number.

It is an amenable number.

1372849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372849 is an equidigital number, since it uses as much as digits as its factorization.

1372849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1372849 is about 1171.6863914888. The cubic root of 1372849 is about 111.1409890391.

The spelling of 1372849 in words is "one million, three hundred seventy-two thousand, eight hundred forty-nine".