85730357 has 2 divisors, whose sum is σ = 85730358. Its totient is φ = 85730356.

The previous prime is 85730329. The next prime is 85730377. The reversal of 85730357 is 75303758.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64625521 + 21104836 = 8039^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 85730357 - 2²⁰ = 84681781 is a prime.

It is a super-2 number, since 2×85730357² = 14699388222694898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85730357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85730327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42865178 + 42865179.

It is an arithmetic number, because the mean of its divisors is an integer number (42865179).

Almost surely, 2^85730357 is an apocalyptic number.

It is an amenable number.

85730357 is a deficient number, since it is larger than the sum of its proper divisors (1).

85730357 is an equidigital number, since it uses as much as digits as its factorization.

85730357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 85730357 is about 9259.0689056730. The cubic root of 85730357 is about 440.9386932875.

The spelling of 85730357 in words is "eighty-five million, seven hundred thirty thousand, three hundred fifty-seven".