992971 has 4 divisors (see below), whose sum is σ = 1134832. Its totient is φ = 851112.

The previous prime is 992963. The next prime is 992983. The reversal of 992971 is 179299.

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

It is a cyclic number.

It is not a de Polignac number, because 992971 - 2³ = 992963 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 992971.

It is not an unprimeable number, because it can be changed into a prime (992941) 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, 70920 + ... + 70933.

It is an arithmetic number, because the mean of its divisors is an integer number (283708).

2⁹⁹²⁹⁷¹ is an apocalyptic number.

992971 is a deficient number, since it is larger than the sum of its proper divisors (141861).

992971 is a wasteful number, since it uses less digits than its factorization.

992971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141860.

The product of its digits is 10206, while the sum is 37.

The square root of 992971 is about 996.4793023440. The cubic root of 992971 is about 99.7651488813.

It can be divided in two parts, 9929 and 71, that added together give a 4-th power (10000 = 10⁴).

The spelling of 992971 in words is "nine hundred ninety-two thousand, nine hundred seventy-one".