85494491 has 2 divisors, whose sum is σ = 85494492. Its totient is φ = 85494490.

The previous prime is 85494469. The next prime is 85494499. The reversal of 85494491 is 19449458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85494491 - 2²² = 81300187 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85494499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42747245 + 42747246.

It is an arithmetic number, because the mean of its divisors is an integer number (42747246).

Almost surely, 2^85494491 is an apocalyptic number.

85494491 is a deficient number, since it is larger than the sum of its proper divisors (1).

85494491 is an equidigital number, since it uses as much as digits as its factorization.

85494491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 85494491 is about 9246.3231070518. The cubic root of 85494491 is about 440.5339437348.

The spelling of 85494491 in words is "eighty-five million, four hundred ninety-four thousand, four hundred ninety-one".