1874387 has 2 divisors, whose sum is σ = 1874388. Its totient is φ = 1874386.

The previous prime is 1874377. The next prime is 1874399. The reversal of 1874387 is 7834781.

It is a weak prime.

It is an emirp because it is prime and its reverse (7834781) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1874387 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1874387.

It is not a weakly prime, because it can be changed into another prime (1874317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937193 + 937194.

It is an arithmetic number, because the mean of its divisors is an integer number (937194).

2^1874387 is an apocalyptic number.

1874387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874387 is an equidigital number, since it uses as much as digits as its factorization.

1874387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 1874387 is about 1369.0825395132. The cubic root of 1874387 is about 123.2971641362.

The spelling of 1874387 in words is "one million, eight hundred seventy-four thousand, three hundred eighty-seven".