85400527 has 2 divisors, whose sum is σ = 85400528. Its totient is φ = 85400526.

The previous prime is 85400521. The next prime is 85400531. The reversal of 85400527 is 72500458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85400527 - 2¹⁵ = 85367759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85400521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42700263 + 42700264.

It is an arithmetic number, because the mean of its divisors is an integer number (42700264).

Almost surely, 2^85400527 is an apocalyptic number.

85400527 is a deficient number, since it is larger than the sum of its proper divisors (1).

85400527 is an equidigital number, since it uses as much as digits as its factorization.

85400527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 85400527 is about 9241.2405552501. The cubic root of 85400527 is about 440.3724927637.

The spelling of 85400527 in words is "eighty-five million, four hundred thousand, five hundred twenty-seven".