85485719 has 4 divisors (see below), whose sum is σ = 93257160. Its totient is φ = 77714280.

The previous prime is 85485713. The next prime is 85485721. The reversal of 85485719 is 91758458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85485719 - 2¹² = 85481623 is a prime.

It is a super-2 number, since 2×85485719² = 14615616305893922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85485713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885704 + ... + 3885725.

It is an arithmetic number, because the mean of its divisors is an integer number (23314290).

Almost surely, 2^85485719 is an apocalyptic number.

85485719 is a deficient number, since it is larger than the sum of its proper divisors (7771441).

85485719 is a wasteful number, since it uses less digits than its factorization.

85485719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771440.

The product of its digits is 403200, while the sum is 47.

The square root of 85485719 is about 9245.8487441662. The cubic root of 85485719 is about 440.5188765031.

The spelling of 85485719 in words is "eighty-five million, four hundred eighty-five thousand, seven hundred nineteen".