2085731 has 2 divisors, whose sum is σ = 2085732. Its totient is φ = 2085730.

The previous prime is 2085703. The next prime is 2085737. The reversal of 2085731 is 1375802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2085731 - 2⁶ = 2085667 is a prime.

It is a super-2 number, since 2×2085731² = 8700547608722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2085731.

It is not a weakly prime, because it can be changed into another prime (2085737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042865 + 1042866.

It is an arithmetic number, because the mean of its divisors is an integer number (1042866).

2^2085731 is an apocalyptic number.

2085731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085731 is an equidigital number, since it uses as much as digits as its factorization.

2085731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2085731 is about 1444.2060102354. The cubic root of 2085731 is about 127.7672160702.

The spelling of 2085731 in words is "two million, eighty-five thousand, seven hundred thirty-one".