3429987 has 16 divisors (see below), whose sum is σ = 5036160. Its totient is φ = 2076360.

The previous prime is 3429983. The next prime is 3429989. The reversal of 3429987 is 7899243.

3429987 is nontrivially palindromic in base 9.

3429987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3429987 - 2² = 3429983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3429983) 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 15 ways as a sum of consecutive naturals, for example, 3564 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (314760).

Almost surely, 2^3429987 is an apocalyptic number.

3429987 is a deficient number, since it is larger than the sum of its proper divisors (1606173).

3429987 is an equidigital number, since it uses as much as digits as its factorization.

3429987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 873 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 3429987 is about 1852.0224080718. The cubic root of 3429987 is about 150.8102377738.

The spelling of 3429987 in words is "three million, four hundred twenty-nine thousand, nine hundred eighty-seven".