85831633 has 2 divisors, whose sum is σ = 85831634. Its totient is φ = 85831632.

The previous prime is 85831609. The next prime is 85831637. The reversal of 85831633 is 33613858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74080449 + 11751184 = 8607^2 + 3428^2 .

It is a cyclic number.

It is not a de Polignac number, because 85831633 - 2¹⁷ = 85700561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85831592 and 85831601.

It is not a weakly prime, because it can be changed into another prime (85831637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42915816 + 42915817.

It is an arithmetic number, because the mean of its divisors is an integer number (42915817).

Almost surely, 2^85831633 is an apocalyptic number.

It is an amenable number.

85831633 is a deficient number, since it is larger than the sum of its proper divisors (1).

85831633 is an equidigital number, since it uses as much as digits as its factorization.

85831633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 85831633 is about 9264.5363078786. The cubic root of 85831633 is about 441.1122565987.

The spelling of 85831633 in words is "eighty-five million, eight hundred thirty-one thousand, six hundred thirty-three".