4920689 has 4 divisors (see below), whose sum is σ = 5134656. Its totient is φ = 4706724.

The previous prime is 4920683. The next prime is 4920703. The reversal of 4920689 is 9860294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4920689 - 2¹⁶ = 4855153 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 (4920683) 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, 106949 + ... + 106994.

It is an arithmetic number, because the mean of its divisors is an integer number (1283664).

Almost surely, 2^4920689 is an apocalyptic number.

It is an amenable number.

4920689 is a deficient number, since it is larger than the sum of its proper divisors (213967).

4920689 is a wasteful number, since it uses less digits than its factorization.

4920689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213966.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 4920689 is about 2218.2626084393. The cubic root of 4920689 is about 170.0886388963.

The spelling of 4920689 in words is "four million, nine hundred twenty thousand, six hundred eighty-nine".