3503881 has 2 divisors, whose sum is σ = 3503882. Its totient is φ = 3503880.

The previous prime is 3503869. The next prime is 3503891. The reversal of 3503881 is 1883053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 99856 = 1845^2 + 316^2 .

It is an emirp because it is prime and its reverse (1883053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3503881 - 2⁵ = 3503849 is a prime.

It is a super-2 number, since 2×3503881² = 24554364124322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3503821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1751940 + 1751941.

It is an arithmetic number, because the mean of its divisors is an integer number (1751941).

Almost surely, 2^3503881 is an apocalyptic number.

It is an amenable number.

3503881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3503881 is an equidigital number, since it uses as much as digits as its factorization.

3503881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 3503881 is about 1871.8656468882. The cubic root of 3503881 is about 151.8855469201.

The spelling of 3503881 in words is "three million, five hundred three thousand, eight hundred eighty-one".