4992509 has 4 divisors (see below), whose sum is σ = 5286204. Its totient is φ = 4698816.

The previous prime is 4992499. The next prime is 4992511. The reversal of 4992509 is 9052994.

4992509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3422500 + 1570009 = 1850^2 + 1253^2 .

It is a cyclic number.

It is not a de Polignac number, because 4992509 - 2¹⁶ = 4926973 is a prime.

It is a super-2 number, since 2×4992509² = 49850292230162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4992539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146822 + ... + 146855.

It is an arithmetic number, because the mean of its divisors is an integer number (1321551).

Almost surely, 2^4992509 is an apocalyptic number.

It is an amenable number.

4992509 is a deficient number, since it is larger than the sum of its proper divisors (293695).

4992509 is a wasteful number, since it uses less digits than its factorization.

4992509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293694.

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

The square root of 4992509 is about 2234.3923111218. The cubic root of 4992509 is about 170.9121557865.

The spelling of 4992509 in words is "four million, nine hundred ninety-two thousand, five hundred nine".