3890743 has 2 divisors, whose sum is σ = 3890744. Its totient is φ = 3890742.

The previous prime is 3890737. The next prime is 3890753. The reversal of 3890743 is 3470983.

It is a weak prime.

It is an emirp because it is prime and its reverse (3470983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3890743 - 2²¹ = 1793591 is a prime.

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

3890743 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3890699 and 3890708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3890713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945371 + 1945372.

It is an arithmetic number, because the mean of its divisors is an integer number (1945372).

Almost surely, 2^3890743 is an apocalyptic number.

3890743 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890743 is an equidigital number, since it uses as much as digits as its factorization.

3890743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3890743 is about 1972.4966413153. The cubic root of 3890743 is about 157.2814538365.

The spelling of 3890743 in words is "three million, eight hundred ninety thousand, seven hundred forty-three".