85831463 has 2 divisors, whose sum is σ = 85831464. Its totient is φ = 85831462.

The previous prime is 85831451. The next prime is 85831481. The reversal of 85831463 is 36413858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85831463 - 2¹⁰ = 85830439 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85836463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42915731 + 42915732.

It is an arithmetic number, because the mean of its divisors is an integer number (42915732).

Almost surely, 2^85831463 is an apocalyptic number.

85831463 is a deficient number, since it is larger than the sum of its proper divisors (1).

85831463 is an equidigital number, since it uses as much as digits as its factorization.

85831463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 85831463 is about 9264.5271331029. The cubic root of 85831463 is about 441.1119653730. Note that the first 3 decimals are identical.

The spelling of 85831463 in words is "eighty-five million, eight hundred thirty-one thousand, four hundred sixty-three".