3261431 has 4 divisors (see below), whose sum is σ = 3295152. Its totient is φ = 3227712.

The previous prime is 3261413. The next prime is 3261437. The reversal of 3261431 is 1341623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341623 = 17 ⋅78919.

It is a cyclic number.

It is not a de Polignac number, because 3261431 - 2¹⁰ = 3260407 is a prime.

It is a super-2 number, since 2×3261431² = 21273864335522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261437) 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, 16715 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (823788).

Almost surely, 2^3261431 is an apocalyptic number.

3261431 is a deficient number, since it is larger than the sum of its proper divisors (33721).

3261431 is an equidigital number, since it uses as much as digits as its factorization.

3261431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33720.

The product of its digits is 432, while the sum is 20.

The square root of 3261431 is about 1805.9432438479. The cubic root of 3261431 is about 148.2982632517.

The spelling of 3261431 in words is "three million, two hundred sixty-one thousand, four hundred thirty-one".