3874395253 has 4 divisors (see below), whose sum is σ = 3875024268. Its totient is φ = 3873766240.

The previous prime is 3874395193. The next prime is 3874395269. The reversal of 3874395253 is 3525934783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2108462724 + 1765932529 = 45918^2 + 42023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3874395253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3874395197 and 3874395206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874392253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305176 + ... + 317617.

It is an arithmetic number, because the mean of its divisors is an integer number (968756067).

Almost surely, 2^3874395253 is an apocalyptic number.

It is an amenable number.

3874395253 is a deficient number, since it is larger than the sum of its proper divisors (629015).

3874395253 is an equidigital number, since it uses as much as digits as its factorization.

3874395253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629014.

The product of its digits is 2721600, while the sum is 49.

The square root of 3874395253 is about 62244.6403556162. The cubic root of 3874395253 is about 1570.6086126748.

The spelling of 3874395253 in words is "three billion, eight hundred seventy-four million, three hundred ninety-five thousand, two hundred fifty-three".