992494909 has 4 divisors (see below), whose sum is σ = 1134279904. Its totient is φ = 850709916.

The previous prime is 992494903. The next prime is 992494939. The reversal of 992494909 is 909494299.

992494909 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 992494909 - 2²¹ = 990397757 is a prime.

It is a super-2 number, since 2×992494909² = 1970092288781836562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 992494909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992494903) 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, 70892487 + ... + 70892500.

It is an arithmetic number, because the mean of its divisors is an integer number (283569976).

Almost surely, 2^992494909 is an apocalyptic number.

It is an amenable number.

992494909 is a deficient number, since it is larger than the sum of its proper divisors (141784995).

992494909 is a wasteful number, since it uses less digits than its factorization.

992494909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141784994.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The square root of 992494909 is about 31503.8872045975. The cubic root of 992494909 is about 997.4920182861.

The spelling of 992494909 in words is "nine hundred ninety-two million, four hundred ninety-four thousand, nine hundred nine".