3420887 has 4 divisors (see below), whose sum is σ = 3431376. Its totient is φ = 3410400.

The previous prime is 3420877. The next prime is 3420913. The reversal of 3420887 is 7880243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3420887 - 2⁴ = 3420871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420827) 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, 4739 + ... + 5412.

It is an arithmetic number, because the mean of its divisors is an integer number (857844).

Almost surely, 2^3420887 is an apocalyptic number.

3420887 is a deficient number, since it is larger than the sum of its proper divisors (10489).

3420887 is a wasteful number, since it uses less digits than its factorization.

3420887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 3420887 is about 1849.5640026774. The cubic root of 3420887 is about 150.6767495493.

The spelling of 3420887 in words is "three million, four hundred twenty thousand, eight hundred eighty-seven".