85390077 has 4 divisors (see below), whose sum is σ = 113853440. Its totient is φ = 56926716.

The previous prime is 85390069. The next prime is 85390087. The reversal of 85390077 is 77009358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85390077 - 2³ = 85390069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85390037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14231677 + ... + 14231682.

It is an arithmetic number, because the mean of its divisors is an integer number (28463360).

Almost surely, 2^85390077 is an apocalyptic number.

It is an amenable number.

85390077 is a deficient number, since it is larger than the sum of its proper divisors (28463363).

85390077 is a wasteful number, since it uses less digits than its factorization.

85390077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28463362.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 85390077 is about 9240.6751376726. The cubic root of 85390077 is about 440.3545300320.

The spelling of 85390077 in words is "eighty-five million, three hundred ninety thousand, seventy-seven".