253768379 has 4 divisors (see below), whose sum is σ = 254154120. Its totient is φ = 253382640.

The previous prime is 253768301. The next prime is 253768397. The reversal of 253768379 is 973867352.

It is a happy number.

253768379 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253768379 is a prime.

It is a super-3 number, since 3×253768379³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253768079) 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, 191882 + ... + 193199.

It is an arithmetic number, because the mean of its divisors is an integer number (63538530).

Almost surely, 2^253768379 is an apocalyptic number.

253768379 is a deficient number, since it is larger than the sum of its proper divisors (385741).

253768379 is an equidigital number, since it uses as much as digits as its factorization.

253768379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385740.

The product of its digits is 1905120, while the sum is 50.

The square root of 253768379 is about 15930.1091961104. The cubic root of 253768379 is about 633.1099930567.

The spelling of 253768379 in words is "two hundred fifty-three million, seven hundred sixty-eight thousand, three hundred seventy-nine".