85352399 has 4 divisors (see below), whose sum is σ = 93111720. Its totient is φ = 77593080.

The previous prime is 85352387. The next prime is 85352401. The reversal of 85352399 is 99325358.

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 85352399 - 2⁴ = 85352383 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 (85352369) 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, 3879644 + ... + 3879665.

It is an arithmetic number, because the mean of its divisors is an integer number (23277930).

Almost surely, 2^85352399 is an apocalyptic number.

85352399 is a deficient number, since it is larger than the sum of its proper divisors (7759321).

85352399 is a wasteful number, since it uses less digits than its factorization.

85352399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759320.

The product of its digits is 291600, while the sum is 44.

The square root of 85352399 is about 9238.6362088785. The cubic root of 85352399 is about 440.2897523299.

The spelling of 85352399 in words is "eighty-five million, three hundred fifty-two thousand, three hundred ninety-nine".