85849615 has 4 divisors (see below), whose sum is σ = 103019544. Its totient is φ = 68679688.

The previous prime is 85849601. The next prime is 85849627. The reversal of 85849615 is 51694858.

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 85849615 - 2⁷ = 85849487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8584957 + ... + 8584966.

It is an arithmetic number, because the mean of its divisors is an integer number (25754886).

Almost surely, 2^85849615 is an apocalyptic number.

85849615 is a deficient number, since it is larger than the sum of its proper divisors (17169929).

85849615 is a wasteful number, since it uses less digits than its factorization.

85849615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17169928.

The product of its digits is 345600, while the sum is 46.

The square root of 85849615 is about 9265.5067319602. The cubic root of 85849615 is about 441.1430592545.

The spelling of 85849615 in words is "eighty-five million, eight hundred forty-nine thousand, six hundred fifteen".