992725109 has 4 divisors (see below), whose sum is σ = 995490720. Its totient is φ = 989959500.

The previous prime is 992725093. The next prime is 992725127. The reversal of 992725109 is 901527299.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 901527299 = 271 ⋅3326669.

It is a cyclic number.

It is not a de Polignac number, because 992725109 - 2⁴ = 992725093 is a prime.

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 992725109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992721109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382267 + ... + 1382984.

It is an arithmetic number, because the mean of its divisors is an integer number (248872680).

Almost surely, 2^992725109 is an apocalyptic number.

It is an amenable number.

992725109 is a deficient number, since it is larger than the sum of its proper divisors (2765611).

992725109 is a wasteful number, since it uses less digits than its factorization.

992725109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765610.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 992725109 is about 31507.5405101699. The cubic root of 992725109 is about 997.5691320022.

The spelling of 992725109 in words is "nine hundred ninety-two million, seven hundred twenty-five thousand, one hundred nine".