4661939 has 4 divisors (see below), whose sum is σ = 4864656. Its totient is φ = 4459224.

The previous prime is 4661911. The next prime is 4661941. The reversal of 4661939 is 9391664.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4661939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4661959) 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 3 ways as a sum of consecutive naturals, for example, 101324 + ... + 101369.

It is an arithmetic number, because the mean of its divisors is an integer number (1216164).

Almost surely, 2^4661939 is an apocalyptic number.

4661939 is a deficient number, since it is larger than the sum of its proper divisors (202717).

4661939 is a wasteful number, since it uses less digits than its factorization.

4661939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202716.

The product of its digits is 34992, while the sum is 38.

The square root of 4661939 is about 2159.1523799862. The cubic root of 4661939 is about 167.0534806662.

The spelling of 4661939 in words is "four million, six hundred sixty-one thousand, nine hundred thirty-nine".