3257697723 has 16 divisors (see below), whose sum is σ = 5065420800. Its totient is φ = 1861540968.

The previous prime is 3257697721. The next prime is 3257697731. The reversal of 3257697723 is 3277967523.

It is not a de Polignac number, because 3257697723 - 2¹ = 3257697721 is a prime.

It is a super-2 number, since 2×3257697723² = 21225188908878769458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257697721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581915 + ... + 1583972.

It is an arithmetic number, because the mean of its divisors is an integer number (316588800).

Almost surely, 2^3257697723 is an apocalyptic number.

3257697723 is a deficient number, since it is larger than the sum of its proper divisors (1807723077).

3257697723 is an equidigital number, since it uses as much as digits as its factorization.

3257697723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165911 (or 3165897 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 51.

The square root of 3257697723 is about 57076.2448221675. The cubic root of 3257697723 is about 1482.4165723275.

The spelling of 3257697723 in words is "three billion, two hundred fifty-seven million, six hundred ninety-seven thousand, seven hundred twenty-three".