992905 has 8 divisors (see below), whose sum is σ = 1197000. Its totient is φ = 790656.

The previous prime is 992903. The next prime is 992917. The reversal of 992905 is 509299.

992905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 927369 = 256^2 + 963^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 992905 - 2¹ = 992903 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (992903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (149625).

2⁹⁹²⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

992905 is a deficient number, since it is larger than the sum of its proper divisors (204095).

992905 is a wasteful number, since it uses less digits than its factorization.

992905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 992905 is about 996.4461852002. The cubic root of 992905 is about 99.7629384624.

The spelling of 992905 in words is "nine hundred ninety-two thousand, nine hundred five".