4661985 has 16 divisors (see below), whose sum is σ = 7784064. Its totient is φ = 2378112.

The previous prime is 4661983. The next prime is 4661989. The reversal of 4661985 is 5891664.

It is not a de Polignac number, because 4661985 - 2¹ = 4661983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4661983) 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, 6412 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (486504).

Almost surely, 2^4661985 is an apocalyptic number.

It is an amenable number.

4661985 is a deficient number, since it is larger than the sum of its proper divisors (3122079).

4661985 is a wasteful number, since it uses less digits than its factorization.

4661985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13544.

The product of its digits is 51840, while the sum is 39.

The square root of 4661985 is about 2159.1630322882. The cubic root of 4661985 is about 167.0540301110.

The spelling of 4661985 in words is "four million, six hundred sixty-one thousand, nine hundred eighty-five".