85825797 has 4 divisors (see below), whose sum is σ = 114434400. Its totient is φ = 57217196.

The previous prime is 85825781. The next prime is 85825799. The reversal of 85825797 is 79752858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85825797 - 2⁴ = 85825781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85825799) 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, 14304297 + ... + 14304302.

It is an arithmetic number, because the mean of its divisors is an integer number (28608600).

Almost surely, 2^85825797 is an apocalyptic number.

It is an amenable number.

85825797 is a deficient number, since it is larger than the sum of its proper divisors (28608603).

85825797 is a wasteful number, since it uses less digits than its factorization.

85825797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28608602.

The product of its digits is 1411200, while the sum is 51.

The square root of 85825797 is about 9264.2213380294. The cubic root of 85825797 is about 441.1022587717.

The spelling of 85825797 in words is "eighty-five million, eight hundred twenty-five thousand, seven hundred ninety-seven".