3485681 has 2 divisors, whose sum is σ = 3485682. Its totient is φ = 3485680.

The previous prime is 3485641. The next prime is 3485687. The reversal of 3485681 is 1865843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2611456 + 874225 = 1616^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 3485681 - 2⁶ = 3485617 is a prime.

It is a super-2 number, since 2×3485681² = 24299944067522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3485687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1742840 + 1742841.

It is an arithmetic number, because the mean of its divisors is an integer number (1742841).

Almost surely, 2^3485681 is an apocalyptic number.

It is an amenable number.

3485681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3485681 is an equidigital number, since it uses as much as digits as its factorization.

3485681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 3485681 is about 1866.9978575242. The cubic root of 3485681 is about 151.6221136025.

The spelling of 3485681 in words is "three million, four hundred eighty-five thousand, six hundred eighty-one".