3487857 has 4 divisors (see below), whose sum is σ = 4650480. Its totient is φ = 2325236.

The previous prime is 3487843. The next prime is 3487871. The reversal of 3487857 is 7587843.

3487857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is an interprime number because it is at equal distance from previous prime (3487843) and next prime (3487871).

It is a cyclic number.

It is not a de Polignac number, because 3487857 - 2⁶ = 3487793 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3487807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581307 + ... + 581312.

It is an arithmetic number, because the mean of its divisors is an integer number (1162620).

Almost surely, 2^3487857 is an apocalyptic number.

It is an amenable number.

3487857 is a deficient number, since it is larger than the sum of its proper divisors (1162623).

3487857 is a wasteful number, since it uses less digits than its factorization.

3487857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162622.

The product of its digits is 188160, while the sum is 42.

The square root of 3487857 is about 1867.5805203525. The cubic root of 3487857 is about 151.6536579968.

The spelling of 3487857 in words is "three million, four hundred eighty-seven thousand, eight hundred fifty-seven".