96857591 has 4 divisors (see below), whose sum is σ = 97499184. Its totient is φ = 96216000.

The previous prime is 96857587. The next prime is 96857617. The reversal of 96857591 is 19575869.

It is a happy number.

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 96857591 - 2² = 96857587 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 (96857521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320570 + ... + 320871.

It is an arithmetic number, because the mean of its divisors is an integer number (24374796).

Almost surely, 2^96857591 is an apocalyptic number.

96857591 is a deficient number, since it is larger than the sum of its proper divisors (641593).

96857591 is a wasteful number, since it uses less digits than its factorization.

96857591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641592.

The product of its digits is 680400, while the sum is 50.

The square root of 96857591 is about 9841.6254246948. The cubic root of 96857591 is about 459.2451245355.

The spelling of 96857591 in words is "ninety-six million, eight hundred fifty-seven thousand, five hundred ninety-one".