3257481 has 4 divisors (see below), whose sum is σ = 4343312. Its totient is φ = 2171652.

The previous prime is 3257453. The next prime is 3257497. The reversal of 3257481 is 1847523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3257481 - 2¹¹ = 3255433 is a prime.

It is a super-2 number, since 2×3257481² = 21222364930722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

3257481 is a lucky number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3257381) 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, 542911 + ... + 542916.

It is an arithmetic number, because the mean of its divisors is an integer number (1085828).

Almost surely, 2^3257481 is an apocalyptic number.

It is an amenable number.

3257481 is a deficient number, since it is larger than the sum of its proper divisors (1085831).

3257481 is a wasteful number, since it uses less digits than its factorization.

3257481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085830.

The product of its digits is 6720, while the sum is 30.

The square root of 3257481 is about 1804.8493011883. The cubic root of 3257481 is about 148.2383698304.

The spelling of 3257481 in words is "three million, two hundred fifty-seven thousand, four hundred eighty-one".