3087731 has 2 divisors, whose sum is σ = 3087732. Its totient is φ = 3087730.

The previous prime is 3087703. The next prime is 3087737. The reversal of 3087731 is 1377803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3087731 is a prime.

It is a super-2 number, since 2×3087731² = 19068165456722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3087694 and 3087703.

It is not a weakly prime, because it can be changed into another prime (3087737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1543865 + 1543866.

It is an arithmetic number, because the mean of its divisors is an integer number (1543866).

Almost surely, 2^3087731 is an apocalyptic number.

3087731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3087731 is an equidigital number, since it uses as much as digits as its factorization.

3087731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 3087731 is about 1757.1940701015. The cubic root of 3087731 is about 145.6173598379.

The spelling of 3087731 in words is "three million, eighty-seven thousand, seven hundred thirty-one".