85736515 has 4 divisors (see below), whose sum is σ = 102883824. Its totient is φ = 68589208.

The previous prime is 85736513. The next prime is 85736527. The reversal of 85736515 is 51563758.

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 85736515 - 2¹ = 85736513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85736513) 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, 8573647 + ... + 8573656.

It is an arithmetic number, because the mean of its divisors is an integer number (25720956).

Almost surely, 2^85736515 is an apocalyptic number.

85736515 is a deficient number, since it is larger than the sum of its proper divisors (17147309).

85736515 is a wasteful number, since it uses less digits than its factorization.

85736515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17147308.

The product of its digits is 126000, while the sum is 40.

The square root of 85736515 is about 9259.4014385380. The cubic root of 85736515 is about 440.9492505570.

The spelling of 85736515 in words is "eighty-five million, seven hundred thirty-six thousand, five hundred fifteen".