85814761 has 2 divisors, whose sum is σ = 85814762. Its totient is φ = 85814760.

The previous prime is 85814731. The next prime is 85814767. The reversal of 85814761 is 16741858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 38204761 = 6900^2 + 6181^2 .

It is a cyclic number.

It is not a de Polignac number, because 85814761 - 2¹³ = 85806569 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (85814767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42907380 + 42907381.

It is an arithmetic number, because the mean of its divisors is an integer number (42907381).

Almost surely, 2^85814761 is an apocalyptic number.

It is an amenable number.

85814761 is a deficient number, since it is larger than the sum of its proper divisors (1).

85814761 is an equidigital number, since it uses as much as digits as its factorization.

85814761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 40.

The square root of 85814761 is about 9263.6256940790. The cubic root of 85814761 is about 441.0833514292.

The spelling of 85814761 in words is "eighty-five million, eight hundred fourteen thousand, seven hundred sixty-one".