3893242 has 4 divisors (see below), whose sum is σ = 5839866. Its totient is φ = 1946620.

The previous prime is 3893213. The next prime is 3893243. The reversal of 3893242 is 2423983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2423983 = 31 ⋅78193.

It can be written as a sum of positive squares in only one way, i.e., 3682561 + 210681 = 1919^2 + 459^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3893243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973309 + ... + 973312.

Almost surely, 2^3893242 is an apocalyptic number.

3893242 is a deficient number, since it is larger than the sum of its proper divisors (1946624).

3893242 is a wasteful number, since it uses less digits than its factorization.

3893242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946623.

The product of its digits is 10368, while the sum is 31.

The square root of 3893242 is about 1973.1300007856. The cubic root of 3893242 is about 157.3151202624.

The spelling of 3893242 in words is "three million, eight hundred ninety-three thousand, two hundred forty-two".