257884461 has 6 divisors (see below), whose sum is σ = 372499790. Its totient is φ = 171922968.

The previous prime is 257884453. The next prime is 257884463. The reversal of 257884461 is 164488752.

It can be written as a sum of positive squares in only one way, i.e., 257602500 + 281961 = 16050^2 + 531^2 .

It is not a de Polignac number, because 257884461 - 2³ = 257884453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257884463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14326906 + ... + 14326923.

Almost surely, 2^257884461 is an apocalyptic number.

It is an amenable number.

257884461 is a deficient number, since it is larger than the sum of its proper divisors (114615329).

257884461 is a wasteful number, since it uses less digits than its factorization.

257884461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653835 (or 28653832 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 257884461 is about 16058.7814294859. The cubic root of 257884461 is about 636.5146318198.

The spelling of 257884461 in words is "two hundred fifty-seven million, eight hundred eighty-four thousand, four hundred sixty-one".