4345987 has 4 divisors (see below), whose sum is σ = 4350240. Its totient is φ = 4341736.

The previous prime is 4345903. The next prime is 4345997. The reversal of 4345987 is 7895434.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4345987 - 2¹⁵ = 4313219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4345997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (1087560).

Almost surely, 2^4345987 is an apocalyptic number.

4345987 is a deficient number, since it is larger than the sum of its proper divisors (4253).

4345987 is a wasteful number, since it uses less digits than its factorization.

4345987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252.

The product of its digits is 120960, while the sum is 40.

The square root of 4345987 is about 2084.7030963665. The cubic root of 4345987 is about 163.1909764290.

The spelling of 4345987 in words is "four million, three hundred forty-five thousand, nine hundred eighty-seven".