85193761 has 2 divisors, whose sum is σ = 85193762. Its totient is φ = 85193760.

The previous prime is 85193729. The next prime is 85193767. The reversal of 85193761 is 16739158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 16966161 = 8260^2 + 4119^2 .

It is a cyclic number.

It is not a de Polignac number, because 85193761 - 2⁵ = 85193729 is a prime.

It is not a weakly prime, because it can be changed into another prime (85193767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42596880 + 42596881.

It is an arithmetic number, because the mean of its divisors is an integer number (42596881).

Almost surely, 2^85193761 is an apocalyptic number.

It is an amenable number.

85193761 is a deficient number, since it is larger than the sum of its proper divisors (1).

85193761 is an equidigital number, since it uses as much as digits as its factorization.

85193761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 85193761 is about 9230.0466412689. The cubic root of 85193761 is about 440.0168054876.

The spelling of 85193761 in words is "eighty-five million, one hundred ninety-three thousand, seven hundred sixty-one".