3457987 has 8 divisors (see below), whose sum is σ = 3943296. Its totient is φ = 3004032.

The previous prime is 3457973. The next prime is 3457991. The reversal of 3457987 is 7897543.

It is a happy number.

3457987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3457987 - 2⁷ = 3457859 is a prime.

It is a Duffinian number.

3457987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3457967) 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 7 ways as a sum of consecutive naturals, for example, 7603 + ... + 8044.

It is an arithmetic number, because the mean of its divisors is an integer number (492912).

Almost surely, 2^3457987 is an apocalyptic number.

3457987 is a deficient number, since it is larger than the sum of its proper divisors (485309).

3457987 is a wasteful number, since it uses less digits than its factorization.

3457987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15677.

The product of its digits is 211680, while the sum is 43.

The square root of 3457987 is about 1859.5663472971. The cubic root of 3457987 is about 151.2194957038.

It can be divided in two parts, 3457 and 987, that added together give a palindrome (4444).

The spelling of 3457987 in words is "three million, four hundred fifty-seven thousand, nine hundred eighty-seven".