971863 has 2 divisors, whose sum is σ = 971864. Its totient is φ = 971862.

The previous prime is 971857. The next prime is 971899. The reversal of 971863 is 368179.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485931 + 485932.

It is an arithmetic number, because the mean of its divisors is an integer number (485932).

2⁹⁷¹⁸⁶³ is an apocalyptic number.

971863 is a deficient number, since it is larger than the sum of its proper divisors (1).

971863 is an equidigital number, since it uses as much as digits as its factorization.

971863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 971863 is about 985.8311214402. The cubic root of 971863 is about 99.0531632972.

The spelling of 971863 in words is "nine hundred seventy-one thousand, eight hundred sixty-three".