3890343 has 4 divisors (see below), whose sum is σ = 5187128. Its totient is φ = 2593560.

The previous prime is 3890333. The next prime is 3890347. The reversal of 3890343 is 3430983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430983 = 3 ⋅1143661.

It is not a de Polignac number, because 3890343 - 2⁵ = 3890311 is a prime.

It is a D-number.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3890343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648388 + ... + 648393.

It is an arithmetic number, because the mean of its divisors is an integer number (1296782).

Almost surely, 2^3890343 is an apocalyptic number.

3890343 is a deficient number, since it is larger than the sum of its proper divisors (1296785).

3890343 is a wasteful number, since it uses less digits than its factorization.

3890343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296784.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3890343 is about 1972.3952443666. The cubic root of 3890343 is about 157.2760637145.

The spelling of 3890343 in words is "three million, eight hundred ninety thousand, three hundred forty-three".