3420987 has 8 divisors (see below), whose sum is σ = 4569936. Its totient is φ = 2276352.

The previous prime is 3420973. The next prime is 3421003. The reversal of 3420987 is 7890243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3420987 - 2¹⁰ = 3419963 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3420187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203 + ... + 3419.

It is an arithmetic number, because the mean of its divisors is an integer number (571242).

Almost surely, 2^3420987 is an apocalyptic number.

3420987 is a deficient number, since it is larger than the sum of its proper divisors (1148949).

3420987 is a wasteful number, since it uses less digits than its factorization.

3420987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3420987 is about 1849.5910358779. The cubic root of 3420987 is about 150.6782177385.

The spelling of 3420987 in words is "three million, four hundred twenty thousand, nine hundred eighty-seven".