3487813 has 4 divisors (see below), whose sum is σ = 3986080. Its totient is φ = 2989548.

The previous prime is 3487807. The next prime is 3487817. The reversal of 3487813 is 3187843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3187843 = 113 ⋅28211.

It is a cyclic number.

It is not a de Polignac number, because 3487813 - 2⁹ = 3487301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3487817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249123 + ... + 249136.

It is an arithmetic number, because the mean of its divisors is an integer number (996520).

Almost surely, 2^3487813 is an apocalyptic number.

It is an amenable number.

3487813 is a deficient number, since it is larger than the sum of its proper divisors (498267).

3487813 is an equidigital number, since it uses as much as digits as its factorization.

3487813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498266.

The product of its digits is 16128, while the sum is 34.

The square root of 3487813 is about 1867.5687403681. The cubic root of 3487813 is about 151.6530202806.

The spelling of 3487813 in words is "three million, four hundred eighty-seven thousand, eight hundred thirteen".