3840071 has 4 divisors (see below), whose sum is σ = 4042200. Its totient is φ = 3637944.

The previous prime is 3840061. The next prime is 3840077. The reversal of 3840071 is 1700483.

It is a happy number.

3840071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1700483 = 37 ⋅45959.

It is a cyclic number.

It is not a de Polignac number, because 3840071 - 2⁶ = 3840007 is a prime.

It is a super-2 number, since 2×3840071² = 29492290570082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840077) 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 in 3 ways as a sum of consecutive naturals, for example, 101036 + ... + 101073.

It is an arithmetic number, because the mean of its divisors is an integer number (1010550).

Almost surely, 2^3840071 is an apocalyptic number.

3840071 is a deficient number, since it is larger than the sum of its proper divisors (202129).

3840071 is a wasteful number, since it uses less digits than its factorization.

3840071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202128.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3840071 is about 1959.6099101607. The cubic root of 3840071 is about 156.5956707644.

The spelling of 3840071 in words is "three million, eight hundred forty thousand, seventy-one".