4661945 has 8 divisors (see below), whose sum is σ = 5612544. Its totient is φ = 3717424.

The previous prime is 4661941. The next prime is 4661959. The reversal of 4661945 is 5491664.

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 4661945 - 2² = 4661941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4661941) 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, 392 + ... + 3078.

It is an arithmetic number, because the mean of its divisors is an integer number (701568).

Almost surely, 2^4661945 is an apocalyptic number.

It is an amenable number.

4661945 is a deficient number, since it is larger than the sum of its proper divisors (950599).

4661945 is a wasteful number, since it uses less digits than its factorization.

4661945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039.

The product of its digits is 25920, while the sum is 35.

The square root of 4661945 is about 2159.1537694199. The cubic root of 4661945 is about 167.0535523331.

It can be divided in two parts, 46619 and 45, that added together give a palindrome (46664).

The spelling of 4661945 in words is "four million, six hundred sixty-one thousand, nine hundred forty-five".