2657897394 has 8 divisors (see below), whose sum is σ = 5315794800. Its totient is φ = 885965796.

The previous prime is 2657897393. The next prime is 2657897413. The reversal of 2657897394 is 4937987562.

It is a sphenic number, since it is the product of 3 distinct primes.

2657897394 is an admirable number.

It is a Smith number, since the sum of its digits (60) 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 (2657897393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221491444 + ... + 221491455.

It is an arithmetic number, because the mean of its divisors is an integer number (664474350).

Almost surely, 2^2657897394 is an apocalyptic number.

2657897394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2657897394 is a wasteful number, since it uses less digits than its factorization.

2657897394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442982904.

The product of its digits is 22861440, while the sum is 60.

The square root of 2657897394 is about 51554.7999123263. The cubic root of 2657897394 is about 1385.2008108957.

The spelling of 2657897394 in words is "two billion, six hundred fifty-seven million, eight hundred ninety-seven thousand, three hundred ninety-four".