920971 has 2 divisors, whose sum is σ = 920972. Its totient is φ = 920970.

The previous prime is 920963. The next prime is 920999. The reversal of 920971 is 179029.

920971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (920999) can be obtained adding 920971 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (179029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920971 - 2³ = 920963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (920921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460485 + 460486.

It is an arithmetic number, because the mean of its divisors is an integer number (460486).

2⁹²⁰⁹⁷¹ is an apocalyptic number.

920971 is a deficient number, since it is larger than the sum of its proper divisors (1).

920971 is an equidigital number, since it uses as much as digits as its factorization.

920971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 920971 is about 959.6723399161. The cubic root of 920971 is about 97.2930873936.

It can be divided in two parts, 920 and 971, that added together give a triangular number (1891 = T₆₁).

The spelling of 920971 in words is "nine hundred twenty thousand, nine hundred seventy-one".