3500261 has 2 divisors, whose sum is σ = 3500262. Its totient is φ = 3500260.

The previous prime is 3500251. The next prime is 3500269. The reversal of 3500261 is 1620053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 988036 = 1585^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 3500261 - 2⁶ = 3500197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3500269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750130 + 1750131.

It is an arithmetic number, because the mean of its divisors is an integer number (1750131).

Almost surely, 2^3500261 is an apocalyptic number.

It is an amenable number.

3500261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3500261 is an equidigital number, since it uses as much as digits as its factorization.

3500261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 3500261 is about 1870.8984472707. The cubic root of 3500261 is about 151.8332225463.

The spelling of 3500261 in words is "three million, five hundred thousand, two hundred sixty-one".