3487931 has 2 divisors, whose sum is σ = 3487932. Its totient is φ = 3487930.

The previous prime is 3487921. The next prime is 3487933. The reversal of 3487931 is 1397843.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3487931 - 2¹⁰ = 3486907 is a prime.

It is a super-2 number, since 2×3487931² = 24331325321522, which contains 22 as substring.

Together with 3487933, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3487891 and 3487900.

It is not a weakly prime, because it can be changed into another prime (3487933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1743965 + 1743966.

It is an arithmetic number, because the mean of its divisors is an integer number (1743966).

Almost surely, 2^3487931 is an apocalyptic number.

3487931 is a deficient number, since it is larger than the sum of its proper divisors (1).

3487931 is an equidigital number, since it uses as much as digits as its factorization.

3487931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 3487931 is about 1867.6003319768. The cubic root of 3487931 is about 151.6547305075.

The spelling of 3487931 in words is "three million, four hundred eighty-seven thousand, nine hundred thirty-one".