4992905 has 8 divisors (see below), whose sum is σ = 6045192. Its totient is φ = 3958528.

The previous prime is 4992833. The next prime is 4992913. The reversal of 4992905 is 5092994.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 4313929 = 824^2 + 2077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 3-Lehmer number, since φ(4992905) divides (4992905-1)³.

It is a cyclic number.

It is not a de Polignac number, because 4992905 - 2¹⁰ = 4991881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3854 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (755649).

Almost surely, 2^4992905 is an apocalyptic number.

It is an amenable number.

4992905 is a deficient number, since it is larger than the sum of its proper divisors (1052287).

4992905 is a wasteful number, since it uses less digits than its factorization.

4992905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8955.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 4992905 is about 2234.4809240627. The cubic root of 4992905 is about 170.9166745181.

The spelling of 4992905 in words is "four million, nine hundred ninety-two thousand, nine hundred five".