992890 has 8 divisors (see below), whose sum is σ = 1787220. Its totient is φ = 397152.

The previous prime is 992867. The next prime is 992891. The reversal of 992890 is 98299.

It can be written as a sum of positive squares in 2 ways, for example, as 908209 + 84681 = 953^2 + 291^2 .

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

It is not an unprimeable number, because it can be changed into a prime (992891) 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, 49635 + ... + 49654.

2⁹⁹²⁸⁹⁰ is an apocalyptic number.

992890 is a deficient number, since it is larger than the sum of its proper divisors (794330).

992890 is a wasteful number, since it uses less digits than its factorization.

992890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99296.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 992890 is about 996.4386584231. The cubic root of 992890 is about 99.7624360808.

The spelling of 992890 in words is "nine hundred ninety-two thousand, eight hundred ninety".