4651985 has 8 divisors (see below), whose sum is σ = 6011880. Its totient is φ = 3435264.

The previous prime is 4651981. The next prime is 4651987. The reversal of 4651985 is 5891564.

It can be written as a sum of positive squares in 4 ways, for example, as 358801 + 4293184 = 599^2 + 2072^2 .

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 4651985 - 2² = 4651981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4651981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35720 + ... + 35849.

It is an arithmetic number, because the mean of its divisors is an integer number (751485).

Almost surely, 2^4651985 is an apocalyptic number.

It is an amenable number.

4651985 is a deficient number, since it is larger than the sum of its proper divisors (1359895).

4651985 is a wasteful number, since it uses less digits than its factorization.

4651985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71587.

The product of its digits is 43200, while the sum is 38.

The square root of 4651985 is about 2156.8460770301. The cubic root of 4651985 is about 166.9345004709.

The spelling of 4651985 in words is "four million, six hundred fifty-one thousand, nine hundred eighty-five".