3493887 has 4 divisors (see below), whose sum is σ = 4658520. Its totient is φ = 2329256.

The previous prime is 3493883. The next prime is 3493909. The reversal of 3493887 is 7883943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7883943 = 3 ⋅2627981.

It is a cyclic number.

It is not a de Polignac number, because 3493887 - 2² = 3493883 is a prime.

It is a D-number.

3493887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3493883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582312 + ... + 582317.

It is an arithmetic number, because the mean of its divisors is an integer number (1164630).

Almost surely, 2^3493887 is an apocalyptic number.

3493887 is a deficient number, since it is larger than the sum of its proper divisors (1164633).

3493887 is a wasteful number, since it uses less digits than its factorization.

3493887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164632.

The product of its digits is 145152, while the sum is 42.

The square root of 3493887 is about 1869.1942114184. The cubic root of 3493887 is about 151.7410034229.

The spelling of 3493887 in words is "three million, four hundred ninety-three thousand, eight hundred eighty-seven".