3431431 has 2 divisors, whose sum is σ = 3431432. Its totient is φ = 3431430.

The previous prime is 3431411. The next prime is 3431437. The reversal of 3431431 is 1341343.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3431431 - 2¹⁷ = 3300359 is a prime.

It is a super-2 number, since 2×3431431² = 23549437415522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3431399 and 3431408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3431437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715715 + 1715716.

It is an arithmetic number, because the mean of its divisors is an integer number (1715716).

Almost surely, 2^3431431 is an apocalyptic number.

3431431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431431 is an equidigital number, since it uses as much as digits as its factorization.

3431431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 3431431 is about 1852.4122111452. The cubic root of 3431431 is about 150.8313981485.

Adding to 3431431 its reverse (1341343), we get a palindrome (4772774).

The spelling of 3431431 in words is "three million, four hundred thirty-one thousand, four hundred thirty-one".