812382971 has 2 divisors, whose sum is σ = 812382972. Its totient is φ = 812382970.

The previous prime is 812382947. The next prime is 812382983. The reversal of 812382971 is 179283218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812382971 - 2¹⁴ = 812366587 is a prime.

It is not a weakly prime, because it can be changed into another prime (812381971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406191485 + 406191486.

It is an arithmetic number, because the mean of its divisors is an integer number (406191486).

Almost surely, 2^812382971 is an apocalyptic number.

812382971 is a deficient number, since it is larger than the sum of its proper divisors (1).

812382971 is an equidigital number, since it uses as much as digits as its factorization.

812382971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 812382971 is about 28502.3327290943. The cubic root of 812382971 is about 933.0829858174.

The spelling of 812382971 in words is "eight hundred twelve million, three hundred eighty-two thousand, nine hundred seventy-one".