85736665 has 8 divisors (see below), whose sum is σ = 117581760. Its totient is φ = 58790832.

The previous prime is 85736657. The next prime is 85736671. The reversal of 85736665 is 56663758.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85736665 - 2³ = 85736657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224775 + ... + 1224844.

It is an arithmetic number, because the mean of its divisors is an integer number (14697720).

Almost surely, 2^85736665 is an apocalyptic number.

It is an amenable number.

85736665 is a deficient number, since it is larger than the sum of its proper divisors (31845095).

85736665 is a wasteful number, since it uses less digits than its factorization.

85736665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449631.

The product of its digits is 907200, while the sum is 46.

The square root of 85736665 is about 9259.4095384101. The cubic root of 85736665 is about 440.9495077106.

The spelling of 85736665 in words is "eighty-five million, seven hundred thirty-six thousand, six hundred sixty-five".