3401987 has 4 divisors (see below), whose sum is σ = 3435120. Its totient is φ = 3368856.

The previous prime is 3401963. The next prime is 3402013. The reversal of 3401987 is 7891043.

3401987 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.

It is a cyclic number.

It is not a de Polignac number, because 3401987 - 2⁸ = 3401731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3401917) 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, 16412 + ... + 16617.

It is an arithmetic number, because the mean of its divisors is an integer number (858780).

Almost surely, 2^3401987 is an apocalyptic number.

3401987 is a deficient number, since it is larger than the sum of its proper divisors (33133).

3401987 is a wasteful number, since it uses less digits than its factorization.

3401987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33132.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3401987 is about 1844.4476137858. The cubic root of 3401987 is about 150.3987464765.

The spelling of 3401987 in words is "three million, four hundred one thousand, nine hundred eighty-seven".