3401287 has 4 divisors (see below), whose sum is σ = 3406480. Its totient is φ = 3396096.

The previous prime is 3401273. The next prime is 3401297. The reversal of 3401287 is 7821043.

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 3401287 - 2⁷ = 3401159 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 (3401297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (851620).

Almost surely, 2^3401287 is an apocalyptic number.

3401287 is a deficient number, since it is larger than the sum of its proper divisors (5193).

3401287 is an equidigital number, since it uses as much as digits as its factorization.

3401287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3401287 is about 1844.2578453134. The cubic root of 3401287 is about 150.3884303147.

It can be divided in two parts, 340 and 1287, that multiplied together give a triangular number (437580 = T₉₃₅).

The spelling of 3401287 in words is "three million, four hundred one thousand, two hundred eighty-seven".