4920909 has 16 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 2720880.

The previous prime is 4920901. The next prime is 4920911. The reversal of 4920909 is 9090294.

It is a happy number.

It is not a de Polignac number, because 4920909 - 2³ = 4920901 is a prime.

4920909 is a modest number, since divided by 909 gives 492 as remainder.

4920909 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4920909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4920901) 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 15 ways as a sum of consecutive naturals, for example, 3129 + ... + 4430.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^4920909 is an apocalyptic number.

It is an amenable number.

4920909 is a deficient number, since it is larger than the sum of its proper divisors (2820531).

4920909 is a wasteful number, since it uses less digits than its factorization.

4920909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 4920909 is about 2218.3121962429. The cubic root of 4920909 is about 170.0911737000.

The spelling of 4920909 in words is "four million, nine hundred twenty thousand, nine hundred nine".