4351985 has 16 divisors (see below), whose sum is σ = 5787072. Its totient is φ = 3115200.

The previous prime is 4351981. The next prime is 4352003. The reversal of 4351985 is 5891534.

It is not a de Polignac number, because 4351985 - 2² = 4351981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4351981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3095 + ... + 4275.

It is an arithmetic number, because the mean of its divisors is an integer number (361692).

Almost surely, 2^4351985 is an apocalyptic number.

It is an amenable number.

4351985 is a deficient number, since it is larger than the sum of its proper divisors (1435087).

4351985 is a wasteful number, since it uses less digits than its factorization.

4351985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its digits is 21600, while the sum is 35.

The square root of 4351985 is about 2086.1411745134. The cubic root of 4351985 is about 163.2660165004.

The spelling of 4351985 in words is "four million, three hundred fifty-one thousand, nine hundred eighty-five".